IISER 2026 Registration Started

The Indian Institute of Science Education and Research (IISER) has started the registration process for the IISER Aptitude Test (IAT) 2026. The registration window is open from March 5, 2026, to April 13, 2026.

The entrance exam will be conducted on June 7, 2026, for admission to many IISER campuses. Students who want a career in science and research can apply online through the official website.

Applicants can apply through the SCB, KVPY, or JEE Advanced route. It is important to know the eligibility criteria, compile the right documents, and fill in the form correctly.

Eligibility Criteria for IAT 2026

• Candidates should have passed Class 12 (or equivalent) in 2024 or 2025.
• They should be from a science stream and have studied subjects like Physics, Chemistry, Mathematics and/or Biology.
• The candidates in General, EWS, and OBC-NCL categories are required to have at least 60% marks.
• Candidates from SC, ST, or PwD categories must secure a minimum of 55%.

Eligibility criteria differ marginally based on which channel one decides to apply through—SCB, KVPY, or JEE Advanced. All of these channels also involve a different application form and fee.

What is IISER, and Who Can Apply?

IISERs are self-governing institutions under the Ministry of Education, Government of India. They provide quality education and research in basic sciences.

Candidates having higher secondary science education can apply for admission to the BS-MS dual degree courses provided by these institutes.

IISER 2026 Admission Schedule: Important Dates

It is important to keep an eye on the official schedule. Missing a deadline could deprive you of the opportunity to apply.

IISER 2026 Application: Important Dates

The IISER 2026 application process started on 5 March 2026. The last date to submit the form is 13 April 2026.

An application correction window will be available from April 16, 2026. This window allows applicants to rectify errors in their application form.

Documents Required for IISER Application

Keep all required documents ready before starting the application form. This makes the process easier and quicker.

• Valid email ID and mobile number
• Recent passport-size photograph (scanned copy)
• Scanned signature
• Class 12 mark sheet (if available)
• Category certificate (if applicable)
• PwD certificate or medical certificate (as applicable)
• OCI/PIO certificate (if applicable)
• ID proof (not required while applying)

IISER File Specifications for Upload

Documents must be uploaded in the specified format and size. Follow these specifications exactly.

How to Fill IISER Application Form 2026

IISER Registration 2026

Log on to the official IISER admissions portal to start the application process. Fill in your name, date of birth, a valid email ID, and mobile number.

An OTP will be sent to your phone and email address for verification. After verification, you will receive your login details.

IISER Log In and Fill Up Your Profile

Use the credentials sent to your email to log into your account. Begin filling in your personal details, including parent or guardian information, nationality, category (General, OBC, SC, etc.), address, and contact numbers.

You will also be asked about your family's educational background and annual income.

IISER Educational Qualifications

Next, provide details of your academic history. Ensure all entries match the details on your official documents.

• Class 10 and Class 12 board names and passing years
• Name and address of your school
• Whether your school is in a rural or urban area
• Subjects studied in Class 12, particularly Mathematics
• Whether your results have been announced

IISER Required Documents

Upload the required documents after entering your personal and academic details. Follow the exact file format and size specifications.

Preview your application after uploading to ensure everything appears as intended.

IISER Channel and Preferences

Select your admission channel: SCB, KVPY, or JEE Advanced. The requirements depend on your selection.

• SCB candidates must choose five exam cities and rank up to nine IISER campuses in order of preference.
• KVPY applicants must enter their stream, rank, and application number.
• JEE Advanced candidates must input their roll number and counselling centre.
• You can apply to multiple channels, but a separate application fee must be paid for each one.

IISER Application Fee

Payment is the last step before submission. Pay using UPI, net banking, or credit/debit card on the secure payment gateway.

Save the payment receipt and transaction ID for future reference. Check your application one final time, then submit the form.

Download a PDF copy of your completed application for safekeeping after submission.

IISER Aptitude Test 2026 Pattern

The IISER Aptitude Test (IAT) is scheduled for 6 June 2026. The exam pattern details are part of the official admission process.

IISER Aptitude Test Pattern for SCB Stream

Candidates applying under the SCB stream must take the IISER Aptitude Test. It is a computer-based exam covering four subjects: Physics, Chemistry, Mathematics, and Biology. Each subject has 15 questions.

• Duration: 3 hours
• Total Questions: 60
• Marking Scheme: +3 for a correct answer, -1 for a wrong one

The test checks basic concepts and reasoning. Candidates should review the official syllabus and solve sample papers to prepare.

IISER Final Tips for Applicants

Applicants for IISER 2026 should start early, follow instructions closely, and verify everything before submitting the form. Uploaded documents must be readable, and fees should be paid well before the deadline.

Check the official IISER website often for updates. Keep an eye on your email for admit card and exam notifications.

IISER Cutoff Marks for IAT 2026

The IISER Cutoff Marks for IAT 2026 are split by category: General (UR), OBC-NCL, SC/ST, and EWS. The IAT is scored out of 240 marks, and past data shows cutoff scores are quite high.

Can I get IISER with 60 marks?

No, a score of 60 out of 240 in the IAT is very unlikely to secure admission, especially for General category candidates. A score below 60 would likely put a candidate beyond rank 2000.

Here is the expected marks versus rank analysis for IISER.

Is IISER better than IIT?

IISER focuses on science research, while IIT focuses on engineering technology and applied sciences. The choice depends on individual goals and preferences.

IISER Application Form FAQs

1. Can I select my preferred IISER campus while submitting the application form?

Yes. Candidates must rank their preferred IISER campuses when applying. Final allotment depends on IAT scores and seat availability, but preferences are considered.

2. I am a Class 12 student. Am I eligible to apply for IISER IAT 2026?

Yes, students appearing for Class 12 board exams in 2026 are fully eligible. Selected candidates must submit proof of passing, like the Class 12 marksheet, during admission.

3. Is there any limit on the number of times I can appear for the IAT exam?

Yes. Candidates may appear for the IISER Aptitude Test a maximum of three times consecutively in a year. Those who have appeared more than three times are not considered.

4. Should I send any hard copies of documents by post after completing the form?

No, the entire IISER 2026 application process is online. No hard copies need to be posted. Keep the originals for counselling and admission.

5. What if my name or details are printed wrong on the admit card?

Admit Card Errors

If you notice an error in your admit card after it is released, contact the IISER admission helpdesk immediately using the official contact details. Errors can usually be corrected before the exam date if you raise them in time.

Payment Failure During Application

If your payment fails or is pending, your application will be considered incomplete. Log in again to check your payment status, and if needed, make the payment once more to complete your submission.

Eligibility for IAT Without All Four Subjects

Yes, you can attempt the IAT even if you did not study all four subjects. You must have studied at least three of the four subjects—Physics, Chemistry, Mathematics, and Biology—in Class 12 to be qualified.

The IAT exam tests you on all four subjects. If one subject was not part of your course, prepare for it in advance.

What is IISER IAT Cutoff 2026?

The IISER IAT Cutoff 2026 is the lowest closing rank at which a seat is offered at a given campus. It is not a fixed qualifying score. The cutoff is decided by the IISER Joint Admissions Committee (IISER-JAC) and depends on seats available, candidate ranks, and the choices students fill during counselling.

There are two types of cutoffs. The eligibility cutoff is the minimum Class 12 score needed to apply — 60 marks per 100 aggregate for General category and 55 marks per 100 for reserved categories. The admission cutoff is the closing rank in each counselling round. Clearing the eligibility cutoff only qualifies you for counselling; actual admission depends on your rank falling within the closing rank of your chosen campus in that round.

IISER offers only one programme: the 5-year BS-MS Dual Degree in Sciences. There are no branch-wise cutoffs at admission. You choose your major (Physics, Chemistry, Biology, Mathematics, Earth Sciences) in your second or third year on campus.

IISER IAT Cutoff 2026: Important Dates

The IAT 2026 exam was held on June 7, 2026. Over 1.86 lakh students appeared for 2,343 BS-MS seats across all seven campuses.

The cutoff is published campus-wise and category-wise on iiseradmission.in after every round of counselling.

IISER IAT 2026 Expected Cutoff: Campus-Wise and Category-Wise

A rank below 355 gives strong chances at IISER Pune in Round 1, based on 2025 counselling data. Reserved category students (OBC-NCL, EWS, SC, ST) get seats at lower closing ranks than General category students.

• IISER Berhampur had the highest final round General closing rank in 2025 at 8,789. It is the least competitive campus.
• Scoring 160 or more out of 240 is a safe score for most IISER campuses in the General category.
• Closing ranks rise with each counselling round.

IISER IAT 2025 Round-Wise Closing Ranks

The General category final round closing rank at IISER Pune grew from 534 in 2022 to 1,671 in 2025. That is a shift of 1,137 ranks over four years.

Two admission channels exist: IAT channel and JEE Advanced channel. Each has separate campus-wise and category-wise closing ranks.

Factors Affecting IISER IAT Cutoff 2026

The cutoff is decided by the IISER Joint Admissions Committee (IISER-JAC). It depends on seats available, candidate ranks, and the choices students fill during counselling.

• Number of seats at each campus
• Number of candidates appearing for the exam
• Difficulty level of the IAT 2026 paper
• Category-wise reservation policies
• Choice filling patterns of candidates

IISER IAT Cutoff 2026: Marks vs Rank

Scoring 160 or more out of 240 in IAT 2026 targets mid-tier IISER campuses in the General category. A rank below 355 gives strong chances at IISER Pune in Round 1.

• Higher marks generally lead to better ranks and more campus options.
• Closing ranks vary by category and campus.
• Reserved category students can secure seats at lower closing ranks.

IISER IAT Previous Year Cutoff Trends

The General category final round closing rank at IISER Pune grew from 534 in 2022 to 1,671 in 2025. That is a shift of 1,137 ranks over four years.

IISER Berhampur had the highest final round closing rank in 2025 at 8,789 for General category. It is the most accessible campus.

How to Check IISER IAT Cutoff 2026

The cutoff is published on iiseradmission.in after every round of counselling. The first official cutoff release is expected in July 2026.

1. Visit the official website iiseradmission.in.
2. Look for the cutoff or allotment section.
3. Select your campus and category.
4. Check the opening and closing ranks for each round.

IISER IAT Counselling Process 2026

Counselling runs in 8–9 rounds from July to September 2026. Closing ranks rise with each round.

The eligibility cutoff is the minimum Class 12 score needed to apply — 60 marks per 100 aggregate for General category and 55 marks per 100 for reserved categories. Clearing the eligibility cutoff only qualifies you for counselling; actual admission depends on your rank falling within the closing rank of your chosen campus in that round.

FAQs on IISER IAT Cutoff 2026

What is the IISER IAT Cutoff 2026?

The IISER IAT Cutoff 2026 is the lowest closing rank at which a seat is offered at a given campus. It is published campus-wise and category-wise on iiseradmission.in after every round of counselling.

When will the IISER IAT 2026 result be released?

The IISER IAT 2026 result is expected in the last week of June 2026.

How many seats are available at IISER campuses?

There are 2,343 BS-MS seats across all seven campuses. Over 1.86 lakh students appeared for IAT 2026.

Which IISER campus has the highest closing rank?

IISER Berhampur had the highest final round General closing rank in 2025 at 8,789. It is the least competitive campus.

What is a safe score for IISER IAT 2026?

Scoring 160 or more out of 240 is a safe score for most IISER campuses in the General category.

IISER IAT Closing Ranks: 2022 to 2025

The table below shows the final round General category closing ranks for four IISER campuses from 2022 to 2025. These figures come from official seat allotment data published on iiseradmission.in. Values marked approximate reflect the best available reported data from official allotment PDFs.

Source: IISER Admission Portal – iiseradmission.in (Official Seat Allotment PDFs)

The General category closing rank at IISER Pune rose by 1,137 ranks from 2022 to 2025. IISER Berhampur’s final round closing rank moved from about 3,200 in 2022 to 8,789 in 2025. That is a shift of about 5,589 ranks over four years, reflecting growing student acceptance of the newer campus.

IISER IAT 2026 Cutoff: Common Questions

Will the IISER IAT 2026 cutoff be higher or lower than 2025?

IAT 2026 had about 1.86 lakh candidates, fewer than the 2.5 lakh who appeared in 2025. Fewer candidates can ease competition slightly. But cutoff direction also depends on paper difficulty. If the 2026 paper is harder than 2025, closing ranks could ease toward 2024 levels. A General category final round closing rank of 1,500 to 2,000 for IISER Pune is a reasonable estimate for 2026.

Is there a separate cutoff for the JEE Advanced channel at IISER?

Yes. Students who qualify JEE Advanced can apply through the JEE Advanced channel. These candidates are ranked separately and allotted seats from a reserved intake at each campus. The JEE Advanced channel closing ranks differ from IAT channel closing ranks. Both are published on iiseradmission.in after each allotment round.

IISER IAT Cutoff 2026: Important Dates

The IISER IAT 2026 cutoff is released with each round of seat allotment, starting from Round 1 in July 2026. The table below places upcoming events first, followed by completed events. Keep checking iiseradmission.in for official updates.

IISER IAT 2026 Expected Cutoff: Campus-Wise and Category-Wise

The official IISER IAT 2026 cutoff has not been released yet. Once counselling begins, it will be published round-by-round on iiseradmission.in. The table below gives expected Round 1 closing ranks for 2026 based on 2025 counselling data and current exam conditions.

IISER IAT 2026 Expected Cutoff Ranks

The expected Round 1 closing ranks for IISER IAT 2026 are listed below. These figures are based on 2025 counselling trends and are not official.

The official 2026 cutoff will be published on iiseradmission.in after each round of allotment.

IISER Pune and IISER Kolkata fill up early and have the tightest closing ranks. IISER Berhampur and IISER Tirupati have much higher closing ranks in Round 1.

These two campuses stay open through more rounds than other campuses. If your General category rank is above 2,500, look at these two newer campuses closely.

IISER IAT 2025 Round-Wise Closing Ranks

Counselling at IISER runs across up to nine rounds. Closing ranks rise with each passing round at popular campuses.

Students who receive a seat may upgrade to a better campus in a later round. This opens up their original seat for candidates with higher ranks. The table below shows how closing ranks moved across three checkpoints in 2025 for the General category.

At IISER Pune, the closing rank moved from 355 in Round 1 to 1,671 in the final round. That is a shift of 1,316 ranks across nine rounds.

At IISER Berhampur, the closing rank grew from 3,299 in Round 1 to 8,789 in the final round. That is a shift of 5,490 ranks. If your General category rank is between 1,000 and 3,000, do not give up after Round 1. Many seats open up in Rounds 4 through 7.

Should I freeze my seat in Round 1 or wait for later rounds?

Freeze your seat if you are happy with the campus allotted in Round 1. Choose Float if you want to try for a better campus in the next round.

Floating is safe because you cannot get a worse seat than your current allotment. If your first preference is already allotted in Round 1, freeze it right away.

Factors Affecting IISER IAT Cutoff 2026

The IISER IAT cutoff is not fixed in advance. Several factors decide how tight or relaxed the closing ranks will be in 2026. Here are the key ones:

IISER IAT 2026 Cutoff: Factors That Affect Closing Ranks

Several factors decide the IISER IAT 2026 closing ranks. These include the number of candidates, paper difficulty, seat availability, category, admission channel, campus popularity, and counselling round.

• Total candidates appearing: IAT 2026 saw about 1.86 lakh candidates. This is fewer than the 2.5 lakh who appeared in 2025. Fewer candidates can ease the closing ranks slightly at all campuses.
• Paper difficulty: An easier paper means more students score high. This compresses the rank distribution and pushes closing ranks higher (harder). In 2025, the paper was noticeably easier than 2024, causing significant rank inflation. The 2026 paper’s difficulty is the biggest variable.
• Total seats available: IISER 2026 has 2,343 BS-MS seats across seven campuses. Any change in seat intake directly affects closing ranks. More seats generally means higher (easier) closing ranks.
• Category reservation: OBC-NCL, EWS, SC, ST, and PwD categories have separate merit lists. Reserved category candidates compete only within their own category. Their closing ranks are always lower than the General category at the same campus.
• Admission channel: Candidates admitted through the JEE Advanced channel are allotted from a separate intake pool. IAT and JEE Advanced channel candidates do not compete with each other. Each channel has its own closing ranks.
• Campus popularity: Older campuses like IISER Pune and IISER Kolkata attract the most first-preference choices from top-ranked students. This keeps their closing ranks low (harder to enter). Newer campuses like IISER Berhampur and IISER Tirupati see higher closing ranks because fewer students rank them first.
• Round of counselling: Closing ranks rise across rounds as students upgrade to better campuses. This releases seats for lower-ranked students in subsequent rounds.

IISER IAT Cutoff 2026: Marks vs Rank

The IAT 2026 exam has 60 questions for a total of 240 marks. Each correct answer gives 4 marks. Each wrong answer deducts 1 mark. Your rank depends on your total score. The table below shows approximate score ranges and expected ranks for IAT 2026, based on 2025 score distribution trends.

In 2025, the IAT paper was easier than 2024, causing severe rank inflation. A score of 130 marks placed students about 4,000 ranks lower than the same score would have in 2024. If the 2026 paper is harder, ranks at a given score may improve significantly from 2025 benchmarks.

This table is a planning guide based on 2025 distribution trends. Your actual rank will be on iiseradmission.in after the result. Always compare your official rank to the published closing ranks before finalising your choices.

IISER IAT Previous Year Cutoff Trends

More students appear for IAT every year, and IISER campuses are gaining recognition as top science institutions. These two forces have driven closing ranks higher every year from 2022 to 2025. The table below tracks the General category final round closing rank at IISER Pune and IISER Berhampur across four years.

The biggest single-year shift at IISER Pune happened in 2025, when the closing rank rose by 648 ranks. This came from a record 2.5 lakh candidates and a simpler paper than 2024. IISER Kolkata’s General category closing rank grew by about 1,400 ranks from 2022 to 2025. IISER Berhampur’s final round closing rank moved from about 3,200 in 2022 to 8,789 in 2025. That is a shift of about 5,589 ranks, reflecting growing student acceptance of the newer campus.

In 2026, with about 1.86 lakh candidates (down from 2.5 lakh in 2025), the pace of increase may slow. But the four-year trend suggests closing ranks will stay well above 2024 levels unless the paper is significantly harder.

Has the IISER Cutoff Been Rising Every Year?

Yes, the General category closing rank has risen at every IISER campus each year from 2022 to 2025. Growing student interest and more candidates appearing are the main drivers.

In 2026, fewer candidates than 2025 may slow the pace of increase. But unless the paper is much harder, closing ranks are unlikely to fall back to 2024 levels.

How to Check IISER IAT Cutoff 2026

The IISER IAT 2026 cutoff will be published as part of the seat allotment list after each round. Follow these steps to check it once it is released:

• Go to the official IISER admission portal at iiseradmission.in.
• Log in with your registered email ID and password.
• Click on the "Seat Allotment" or "Opening and Closing Ranks" section for the relevant round.
• Download the official PDF showing opening and closing ranks for each campus and category.
• Compare your rank to the closing rank of your preferred campus and category.
• Repeat after every round, as closing ranks change with each new allotment.

IISER IAT Counselling Process 2026

IISER counselling is conducted entirely online by IISER-JAC. There are up to nine rounds of seat allotment from July to September 2026.

Here is how the process works:

• Step 1 – Registration: After the result, eligible candidates register on iiseradmission.in and upload required documents. These include the IAT 2026 scorecard, Class 12 marks certificate, category certificate (if applicable), and photographs.
• Step 2 – Choice Filling: You rank all seven IISER campuses in order of preference. Your rank and your choices together decide your allotment. You can update choices before the locking deadline.
• Step 3 – Round 1 Allotment: IISER-JAC releases the allotment list with opening and closing ranks for each campus and category. This is the first official 2026 cutoff publication.
• Step 4 – Freeze or Float: Choose Freeze to lock your current campus. Choose Float to try for a better campus in the next round. Floating is safe. You cannot get a worse seat than your current allotment.
• Step 5 – Seat Acceptance Fee (SAF): Pay the SAF to confirm participation after each allotment. Missing the payment deadline removes you from the process entirely.
• Step 6 – Subsequent Rounds: The allotment-freeze-or-float cycle repeats for up to nine rounds. Closing ranks rise at popular campuses with each successive round.
• Step 7 – Campus Reporting: After freezing a seat, report to your allotted campus for document verification and admission formalities before the reporting deadline.

FAQs on IISER IAT Cutoff 2026

When will the IISER IAT 2026 cutoff be released?

The IISER IAT 2026 cutoff will come out with the Round 1 seat allotment list. This is expected in July 2026 on iiseradmission.in.

Each subsequent round will publish its own cutoff after allotment. The final round cutoff is expected by September 2026.

What is a good rank in IAT 2026 to get IISER Pune?

Based on 2025 data, a rank below 355 gives strong chances at IISER Pune in Round 1 for General category. The final round closing rank at IISER Pune was 1,671 in 2025.

If your rank is between 400 and 1,500, wait for later rounds before giving up on IISER Pune.

What is the minimum Class 12 score to be eligible for IAT 2026 counselling?

You need at least 60 marks per 100 aggregate in Class 12 for the General category. Reserved category students need at least 55 marks per 100.

This is the eligibility cutoff, not the admission cutoff. Your rank decides actual admission.

Does IISER have branch-wise cutoffs for different science subjects?

No. IISER admits students into a single 5-year BS-MS Dual Degree programme in Sciences. There are no branch-wise cutoffs at the time of admission.

You choose your major subject (Biology, Chemistry, Mathematics, Physics, Earth Sciences) in your second or third year after joining campus.

Which IISER campus is the easiest to get into?

IISER Berhampur generally has the highest General category closing rank, making it the most accessible campus. In 2025, the final round closing rank at IISER Berhampur was 8,789.

IISER Tirupati is the second most accessible. Both are newer campuses established after 2015.

Which IISER campus is the hardest to get into?

IISER Pune has the lowest General category closing rank at every round, making it the most competitive. In 2025, the Round 1 closing rank at IISER Pune was 355 and the final round closing rank was 1,671.

IISER Kolkata is the second most competitive campus.

IISER 2026 Admission: IAT and JEE Advanced Channels

No. IISER 2026 has two main channels: IAT channel and JEE Advanced channel. Each channel has its own closing ranks at every campus.

IAT channel students do not compete with JEE Advanced channel students. Both channels' closing ranks are published separately on iiseradmission.in after each round.

Participation in Later Counselling Rounds

Yes. If you are registered, you automatically participate in all rounds unless you withdraw or miss the SAF payment. You do not need to apply separately for each round.

Many General category students ranked between 1,500 and 4,000 have secured seats in Rounds 4 through 7 in past years.

Total Seats Across IISER Campuses in 2026

There are 2,343 BS-MS seats across all seven IISER campuses for the 2026 cycle. IISER Pune and IISER Kolkata have smaller intakes relative to demand.

This is why their closing ranks are the tightest. IISER Berhampur and IISER Tirupati tend to have more seats available in later rounds.

Seat Acceptance Fee and Refund Policy

The Seat Acceptance Fee (SAF) confirms your intent to stay in the counselling process. You pay it after each allotment round.

If you withdraw before the final round, a portion may be refunded. The exact refund amount depends on when you withdraw. Check the official refund schedule on iiseradmission.in for details.

Safe Scores for IISER Admission in 2026

A score of 100 or more marks targets IISER Berhampur or IISER Tirupati in later rounds for General category. A score of 160 or more makes you competitive for IISER Kolkata, Mohali, or Bhopal.

A score of 180 or more targets IISER Pune. For reserved categories, required scores are lower by roughly 20 to 50 marks depending on the campus.

*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.

IISER IAT 2026 Cutoff: Expected Trends

The IAT 2026 had about 1.86 lakh candidates, fewer than the 2.5 lakh who appeared in 2025. Fewer candidates can ease competition slightly.

Cutoff direction also depends on paper difficulty. If the 2026 paper is harder than 2025, closing ranks could ease toward 2024 levels. A General category final round closing rank of 1,500 to 2,000 for IISER Pune is a reasonable estimate for 2026.

Rising Cutoff Trend

The General category closing rank has risen at every IISER campus each year from 2022 to 2025. Growing student interest and more candidates appearing are the main drivers.

In 2026, fewer candidates than 2025 may slow the pace of increase. But unless the paper is much harder, closing ranks are unlikely to fall back to 2024 levels.

Cutoff Release Dates

The IISER IAT 2026 cutoff will come out with the Round 1 seat allotment list. This is expected in July 2026 on iiseradmission.in.

Each subsequent round will publish its own cutoff after allotment. The final round cutoff is expected by September 2026.

Admission Channels and Cutoffs

IISER 2026 has two main channels: IAT channel and JEE Advanced channel. Each has its own closing ranks at every campus.

Students who qualify JEE Advanced can apply through the JEE Advanced channel. These candidates are ranked separately and allotted seats from a reserved intake at each campus.

The JEE Advanced channel closing ranks differ from IAT channel closing ranks. Both are published on iiseradmission.in after each allotment round. IAT channel students do not compete with JEE Advanced channel students.

Eligibility Criteria

You need at least 60 marks per 100 aggregate in Class 12 for the General category. Reserved category students need at least 55 marks per 100.

This is the eligibility cutoff, not the admission cutoff. Your rank decides actual admission.

Programme Structure

IISER admits students into a single 5-year BS-MS Dual Degree programme in Sciences. There are no branch-wise cutoffs at the time of admission.

You choose your major subject (Biology, Chemistry, Mathematics, Physics, Earth Sciences) in your second or third year after joining campus.

Campus-Wise Competition

IISER Pune has the lowest General category closing rank at every round, making it the most competitive. In 2025, the Round 1 closing rank at IISER Pune was 355 and the final round closing rank was 1,671. IISER Kolkata is the second most competitive campus.

IISER Berhampur generally has the highest General category closing rank, making it the most accessible campus. In 2025, the final round closing rank at IISER Berhampur was 8,789. IISER Tirupati is the second most accessible. Both are newer campuses established after 2015.

Seat Availability

There are 2,343 BS-MS seats across all seven IISER campuses for the 2026 cycle. IISER Pune and IISER Kolkata have smaller intakes relative to demand. This is why their closing ranks are the tightest.

IISER Berhampur and IISER Tirupati tend to have more seats available in later rounds.

Rank vs. Admission Chances

Based on 2025 data, a rank below 355 gives strong chances at IISER Pune in Round 1 for General category. The final round closing rank at IISER Pune was 1,671 in 2025.

If your rank is between 400 and 1,500, wait for later rounds before giving up on IISER Pune. Many General category students ranked between 1,500 and 4,000 have secured seats in Rounds 4 through 7 in past years.

Seat Acceptance and Round Participation

The Seat Acceptance Fee (SAF) confirms your intent to stay in the counselling process. You pay it after each allotment round. If you withdraw before the final round, a portion may be refunded. The exact refund amount depends on the rules published by IISER.

If you are registered, you automatically participate in all rounds unless you withdraw or miss the SAF payment. You do not need to apply separately for each round.

Freeze or Float Decision

Freeze your seat if you are happy with the campus allotted in Round 1. Choose Float if you want to try for a better campus in the next round.

Floating is safe because you cannot get a worse seat than your current allotment. If your first preference is already allotted in Round 1, freeze it right away.

IISER Admission 2026: Overview

The Indian Institute of Science Education and Research (IISER) admission process for 2026 is based on the IISER Aptitude Test (IAT). The official website for all admission-related information is iiseradmission.in.

Admission is offered to the BS-MS dual degree programme across seven IISER campuses. The campuses are Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati.

Eligibility Criteria

Candidates must have passed Class 12 or an equivalent examination with Physics, Chemistry, and Mathematics or Biology. The qualifying examination must be from a recognised board.

For the general category, candidates must have secured at least 60% aggregate marks in their qualifying examination. For SC, ST, and PwD categories, the minimum aggregate is 55%.

Candidates appearing for the Class 12 examination in 2026 are also eligible to apply. They must provide their marks by the specified deadline.

Exam Pattern

The IISER Aptitude Test (IAT) is a computer-based test. The total duration of the exam is 180 minutes.

The question paper contains a total of 60 questions. Each subject section has 15 questions.

• Physics: 15 questions
• Chemistry: 15 questions
• Mathematics: 15 questions
• Biology: 15 questions

Each correct answer carries 4 marks. Each incorrect answer carries a negative marking of 1 mark. Unanswered questions do not carry any marks.

The total marks for the IAT are 240.

Application Fee

The application fee varies by category. The fee is non-refundable except in specific cases.

Payment can be made online through net banking, credit card, or debit card. The application fee is refundable only when a candidate withdraws their application. Check the official refund schedule on iiseradmission.in for details.

Important Dates

The official schedule for IISER Admission 2026 is released on the official website. Candidates must check iiseradmission.in for the exact dates.

These dates are tentative and subject to change. The final schedule will be published on the official website.

How to Apply

Candidates must apply online through the official website iiseradmission.in. No offline application forms are available.

1. Visit the official website iiseradmission.in and click on the application link.
2. Register with a valid email ID and mobile number.
3. Fill in the application form with personal, academic, and contact details.
4. Upload scanned copies of the required documents, including photograph and signature.
5. Pay the application fee online.
6. Submit the application form and take a printout for future reference.

Seat Allotment Process

Seat allotment is done through a centralised counselling process. The allotment is based on the IAT score, category, and preference of campus.

Candidates must fill in their choice of campuses during the application process. The allotment is done in multiple rounds.

After each round, candidates must accept the allotted seat and pay the acceptance fee. Candidates who do not accept the seat are moved to the next round.

Score vs. Campus Cutoff

The required IAT score for admission varies by campus and category. The following are indicative scores for the general category.

A score of 100 or more marks targets IISER Berhampur or IISER Tirupati in later rounds for General category. A score of 160 or more makes you competitive for IISER Kolkata, Mohali, or Bhopal. A score of 180 or more targets IISER Pune.

For reserved categories, required scores are lower by roughly 20 to 50 marks depending on the campus. The exact cutoffs are released after each round of allotment.

IISER IAT Results 2026 Overview

The IISER IAT 2026 result has been declared on June 29, 2026, on the official admissions portal iiseradmission.in. The result is available online for all candidates who appeared in the examination.

The scorecard includes the candidate's name, roll number, application number, marks obtained, All India Rank (AIR), category rank, and qualifying status. Candidates can download their IISER 2026 scorecard by logging in with their registered credentials through the official website.

• The IISER IAT 2026 results have been released online for all candidates who appeared in the examination.
• Candidates can view and download the rank card till 5:00 PM IST, July 09, 2026, once they log in to the Application Portal.
• Candidates who meet the eligibility and rank requirements will be considered for the IISER 2026 counselling and seat allocation process.
• Counselling registration and 8–9 rounds of seat allotment will begin after the results.
• The candidates who have scored at least ONE mark in the IAT 2026 have secured ranks.

IISER IAT 2026 Result: Important Dates

The IISER IAT 2026 result was released on June 29, 2026. The rank card download window closes on July 9, 2026, at 5:00 PM IST.

IISER IAT Rank Card 2026 — Details Inside

The IISER IAT 2026 rank card contains subject-wise marks, total score out of 240, All India Rank, and category rank. It also shows the candidate's qualifying status.

Candidates must log in to the Application Portal on iiseradmission.in to view and download the rank card. The download facility remains open till July 09, 2026, 5:00 PM IST.

IISER IAT 2026 Qualifying Marks

There is no fixed minimum qualifying score for IISER IAT 2026. Candidates who have scored at least one mark in the exam have secured ranks.

• General category candidates need 130+ marks practically.
• SC/ST candidates need 65–75+ marks.

IISER IAT 2026 Expected Cutoff

The IISER IAT cutoff for 2026 is expected in July 2026. Category-wise closing ranks and marks vs rank details will be available after the results.

What After IISER IAT 2026 Result?

Candidates who meet the eligibility and rank requirements will be considered for the IISER 2026 counselling and seat allocation process. Counselling registration and 8–9 rounds of seat allotment will begin after the results.

The counselling process is expected to take place from August to September 2026 on iiseradmission.in.

Key Summary

• IISER IAT 2026 result out on June 29, 2026 — check iiseradmission.in for the live link.
• Rank card will be available on July 9 till 5 pm for candidates to download.
• Rank card includes subject-wise marks, total score out of 240, All India Rank, and category rank.
• No fixed minimum qualifying score; General category candidates need 130+ practically; SC/ST need 65–75+ marks.
• Counselling (8–9 rounds) expected August–September 2026 on iiseradmission.in.

IISER IAT 2026 Result: Key Details

The IISER Aptitude Test (IAT) 2026 result has been declared on June 29, 2026. The exam was conducted by IISER Berhampur, while admissions are handled by IISER Thiruvananthapuram.

IISER IAT Results 2026: Important Dates

The IISER IAT 2026 result has been released, but the rank card is yet to be issued. Based on the 2025 cycle, counselling registration opens within a few days of the result, and the first seat allotment happens roughly 6–8 weeks later.

Where to Check IISER IAT 2026 Result

The IISER IAT 2026 result has been declared on the official admission portal, iiseradmission.in. Candidates can log in using their application credentials to download their scorecard and check their rank details.

Will IISER Notify Candidates by Email?

IISER Admissions typically sends a notification email to registered candidates when the results go live. Email delivery can be delayed, so do not wait for the email. Check iiseradmission.in directly — or bookmark the candidate login page and check it daily once you are in the expected result window.

IISER IAT Results 2026: Previous Year Statistics

The number of candidates appearing for the IAT has grown nearly eight times from 2022 to 2026, while available BS-MS seats have grown by only about 21% in the same period. In 2022, roughly 1 in 13 candidates could theoretically secure a seat. By 2026, that number has jumped to 1 in 79.

More students are choosing science research as a career path, and the IISERs' growing reputation — and the strong career outcomes of BS-MS graduates — are pulling in far larger pools each year.

How to Check IISER IAT Results 2026

Candidates can check the result on the official website iiseradmission.in. Log in with application credentials to view and download the scorecard.

How to Check IISER IAT 2026 Result

The IISER IAT 2026 result is available only through the candidate login on iiseradmission.in. There is no public roll-number-based result link.

Once the result goes live, follow these steps:

• Go to the official website iiseradmission.in.
• Click on the candidate login option.
• Enter your registered email ID and password.
• Download your result and rank card.

Use the "Forgot Password" option on the login page to reset it via your registered email. Do this now, before the result rush — the portal can get slow immediately after declaration, and you do not want to be locked out at that moment.

The portal typically slows down right after the result is declared due to high traffic. If you cannot access it, wait 20–30 minutes and try again. A mobile data connection sometimes works faster than Wi-Fi during peak traffic on the result day.

IISER IAT 2026 Result: Frequently Asked Questions

Can I check the IISER IAT 2026 result without logging in?

No. The result is only accessible through the candidate login on iiseradmission.in. There is no public result page where you can enter a roll number. Keep your registered email ID and password ready well before the result date.

What if I see an error in my rank card after downloading it?

If you spot any error in your name, category, date of birth, or other details on the rank card, report it to the IISER admissions team through the official portal immediately. Errors must be corrected before counselling registration — do not wait until the seat allotment stage, as it may be too late to fix them then.

IISER IAT Results 2026: Rank Card — Details Inside

Your IISER IAT 2026 rank card is the document you will use for counselling registration and seat allotment. Download it the moment the result is out, save a PDF copy, and keep a printout as backup — the portal may not always stay accessible during the counselling period.

Your rank card is a read-only PDF — it cannot be edited or regenerated with different details. If any detail is wrong, contact the admissions team at iiseradmission.in at the earliest. The rank card does not contain a college or branch allotment; that comes later through the counselling rounds.

IISER IAT Results 2026: Qualifying Marks

IISER IAT 2026 has no fixed qualifying marks. Any candidate with a positive score receives an All India Rank (AIR).

However, getting a rank does not guarantee admission, as seat allotment depends on your rank, category, and available seats.

With more than 1.86 lakh candidates competing for 2,343 seats, you need to be in roughly the top 1.3% to secure admission through the IAT route. Here is a practical guide to where different score ranges are likely to land in 2026, based on 2024 and 2025 trends:

IISER IAT 2026: Qualifying Marks FAQs

Is there a subject-wise minimum mark requirement in IISER IAT 2026?

No. IISER IAT does not prescribe any subject-wise minimum qualifying marks. Your total score across all four subjects determines your AIR. Even if you score zero in one subject, but your total net score is positive, you get an official rank — though your overall total will be lower.

What is a good score in IISER IAT 2026?

A score of 200 and above out of 240 is expected to secure a top 100 AIR in the General category. This score range is likely to get a seat in the first or second choice — IISER Pune or Kolkata.

IISER IAT Result 2026: Expected Cutoff

IISER does not publish a single cutoff mark. The opening and closing all-India rank (AIR) for each campus in each counselling round serves as the effective cutoff.

These ranks are published on iiseradmission.in after each seat allotment round. They vary by campus, subject, and category.

Based on 2025 trends, 175+ marks out of 240 is a strong score that can get you into IISER Pune or Kolkata. Scores of 150–174 are competitive for mid-tier IISERs.

With the 2026 applicant pool being 56% larger than 2025, a safe score for top IISERs may be closer to 185–190+ this year.

What After IISER IAT Results 2026?

Once the result is out, here is exactly what you need to do to convert your rank into a seat at an IISER campus.

1. Check and download your rank card

Log in at iiseradmission.in, note your AIR and category rank, and save a PDF copy. This is your starting document for everything that follows.

2. Register for counselling

Counselling registration opens on iiseradmission.in shortly after the result. You will upload documents and pay a counselling participation fee.

Missing the registration deadline means losing your chance at a seat — there is no extension.

3. Fill your choices carefully

During registration, fill in your preferred IISER campuses and subjects in order of preference. Seat allotment is strictly based on your rank and the order of choices you fill.

You cannot revise choices after the window closes, so think through every option before submitting.

4. Participate in seat allotment rounds

IISER runs 8–9 rounds of online seat allotment from around August to September 2026. After each round, log in to check your allotment.

You have two options:

• Accept and Float: Accept the current seat but stay in the pool — if a higher-preference seat opens in the next round, you get it automatically
• Accept and Freeze: Confirm the current seat and exit from further rounds

5. Pay the seat acceptance fee and complete document verification

Once you decide to freeze, pay the acceptance fee online and upload final documents. Physical reporting at your allotted IISER campus happens at the end of the process for final admission confirmation.

Keep these documents ready for IISER 2026 counselling:

• IAT 2026 rank card
• Class 10 and Class 12 mark sheets and certificates
• Category certificate (SC / ST / OBC-NCL / EWS / PwD), if applicable
• Valid photo ID (Aadhaar card or passport)
• Passport-size photographs (as specified in the counselling instructions)

IISER 2026 Counselling: Frequently Asked Questions

When will IISER 2026 counselling start?

Counselling registration is expected to open shortly after the result declaration. The actual seat allotment rounds are likely to begin in August 2026, with 8–9 rounds running through September.

The exact dates will be announced on iiseradmission.in once the result is out — keep checking the portal regularly.

IISER IAT 2026 Result and Rank Card

You can check your IISER IAT 2026 result only on iiseradmission.in through the candidate login. Enter your registered email ID and password. There is no public roll-number-based result link — the login is the only access point.

The rank card will be declared by 9 July, 2026. Candidates are allowed to download the rank card till 5 pm.

IISER IAT 2026 Candidate Count and Seat Availability

More than 1.86 lakh candidates appeared for the IISER IAT 2026 on June 7, 2026. This is a jump of about 56% from 2025 (when ~1.19 lakh appeared) and makes 2026 the most competitive IAT year on record.

There are 2,343 BS-MS Dual Degree seats across seven IISERs — Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur. Seats are distributed across all categories: General, OBC-NCL, EWS, SC, ST, and PwD.

Rank Card Details and Minimum Qualifying Score

Your IISER IAT 2026 rank card will show your name, roll number, subject-wise marks in Physics, Chemistry, Mathematics, and Biology (each out of 60), total score out of 240, All India Rank (AIR), and category rank. Download it immediately when the result is out and keep a PDF and printed copy.

There is no fixed minimum to qualify. Any candidate with at least one net positive mark after the +3/–1 scheme gets an official AIR. Practically, General category students need 130+ marks out of 240 to have a realistic chance at any IISER seat, and 175+ for top IISERs like Pune or Kolkata.

Marking Scheme

• Each correct answer gives +3 marks.
• Each wrong answer deducts 1 mark.
• Unattempted questions carry 0 marks.
• The maximum total score is 240 — 60 marks each for Physics, Chemistry, Mathematics, and Biology.
• Net scores can turn negative if you attempt many questions incorrectly.

Counselling Rounds and Seat Acceptance

IISER typically conducts 8–9 rounds of online seat allotment. The rounds run from around August through September. After each round, you choose to "Accept and Float" (stay in the pool for a better seat) or "Accept and Freeze" (confirm your current allotment). The final round closes admissions for the cycle.

If you receive a seat allotment but do not accept it within the given window, your allotment is cancelled and the seat goes back into the pool for the next round. Accept your allotment — even if it is not your first preference — and choose "Accept and Float" to keep your options open for a higher-preference campus in subsequent rounds.

Admission Routes Without IAT

Yes. IISER also admits students through JEE Advanced rank and the INSPIRE-SHE scholarship channel. If you have a strong JEE Advanced rank, you may not need to appear for the IAT at all. All three routes lead to the same BS-MS Dual Degree programme. Check the official IISER 2026 admissions brochure on iiseradmission.in for eligibility details for each channel.

Difference Between IISER Campuses

All seven IISERs offer the same five-year BS-MS Dual Degree programme with a research focus. The difference is reputation, location, and closing rank. IISER Pune and Kolkata are the oldest and most sought-after, so their closing ranks are the tightest. IISER Berhampur and Tirupati are newer with more relaxed closing ranks — making them more accessible to candidates in the 900–1,500 AIR range. All IISERs are autonomous institutions of national importance under the Ministry of Education.

Score Interpretation

In the IISER Aptitude Test (IAT), a score of 75 marks out of 240 is generally a lower score that makes admission unlikely for General, EWS, and OBC candidates. However, for SC and ST category candidates, it is considered a decent qualifying score that can secure a seat at newer campuses like IISER Tirupati or Berhampur.

In the IAT, scoring 70 marks out of 240 generally results in an All India General Rank (AIR) above 8,500. While this score makes a seat unlikely for General category candidates, it can yield a competitive rank for SC/ST candidates, making them eligible for campuses like IISER Tirupati or Berhampur.

IISER IAT 2026 Result: Where and How to Check

The IISER IAT 2026 result has been declared on the official admission portal, iiseradmission.in. Candidates can log in using their application credentials to download their scorecard and check their rank details.

You can check your result only on iiseradmission.in through the candidate login. Enter your registered email ID and password. There is no public roll-number-based result link; the login is the only access point.

Will IISER Notify Me by Email?

IISER Admissions typically sends a notification email to registered candidates when the results go live. But email delivery can be delayed, so do not wait for the email.

Check iiseradmission.in directly or bookmark the candidate login page and check it daily once you are in the expected result window.

Can I Check the Result Without Logging In?

No. The result is only accessible through the candidate login on iiseradmission.in. There is no public result page where you can enter a roll number.

Keep your registered email ID and password ready well before the result date.

IISER IAT 2026 Rank Card Details

The rank card will be declared by 9 July, 2026. Candidates are allowed to download the rank card till 5 pm.

Your IISER IAT 2026 rank card will show your name, roll number, subject-wise marks in Physics, Chemistry, Mathematics, and Biology (each out of 60), total score out of 240, All India Rank (AIR), and category rank. Download it immediately when the result is out and keep a PDF and printed copy.

What If I See an Error in My Rank Card?

If you spot any error in your name, category, date of birth, or other details on the rank card, report it to the IISER admissions team through the official portal immediately. Errors must be corrected before counselling registration; do not wait until the seat allotment stage, as it may be too late to fix them then.

IISER IAT 2026 Qualifying Marks and Good Score

There is no fixed minimum. Any candidate with at least one net positive mark after the +3/ 1 scheme gets an official AIR. Practically, General category students need 130+ marks out of 240 to have a realistic chance at any IISER seat, and 175+ for top IISERs like Pune or Kolkata.

No. IISER IAT does not prescribe any subject-wise minimum qualifying marks. Your total score across all four subjects determines your AIR. Even if you score zero in one subject, but your total net score is positive, you get an official rank, though your overall total will be lower.

What Is a Good Score in IISER IAT 2026?

Based on 2025 trends, 175+ marks out of 240 is a strong score that can get you into IISER Pune or Kolkata. Scores of 150 174 are competitive for mid-tier IISERs.

With the 2026 applicant pool being 56% larger than 2025, a safe score for top IISERs may be closer to 185 190+ this year.

IISER IAT 2026 Marking Scheme

The marking scheme uses a +3/ 1 pattern. Each subject is out of 60 marks, and the total is out of 240.

There is no subject-wise minimum qualifying mark. Your net positive total score determines your official rank.

IISER IAT 2026 Candidate Count and Seat Availability

More than 1.86 lakh candidates appeared for the IISER IAT 2026 on June 7, 2026. This is a jump of about 56% from 2025 (when ~1.19 lakh appeared) and makes 2026 the most competitive IAT year on record.

There are 2,343 BS-MS Dual Degree seats across seven IISERs: Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur. Seats are distributed across all categories: General, OBC-NCL, EWS, SC, ST, and PwD.

IISER 2026 Counselling and Seat Allotment

Counselling registration is expected to open shortly after the result declaration. The actual seat allotment rounds are likely to begin in August 2026, with 8 9 rounds running through September.

The exact dates will be announced on iiseradmission.in once the result is out; keep checking the portal regularly.

What Happens If I Do Not Accept My Seat Allotment?

If you receive a seat allotment but do not accept it within the given window, your allotment is cancelled and the seat goes back into the pool for the next round. Accept your allotment, even if it is not your first preference, and choose "Accept and Float" to keep your options open for a higher-preference campus in subsequent rounds.

Alternate Admission Routes to IISER

Yes. Apart from the IAT route, IISER admits students through JEE Advanced rank and the INSPIRE-SHE channel. Candidates with a strong JEE Advanced performance can apply through that channel and participate in the same counselling process.

Both routes lead to the same BS-MS Dual Degree programme; your channel rank determines which IISER and subject you can secure.

IISER Admission 2026: Marking Scheme

Each correct answer gives +3 marks. Each wrong answer deducts 1 mark. Unattempted questions carry 0 marks.

The maximum total score is 240. This is split as 60 marks each for Physics, Chemistry, Mathematics, and Biology. Net scores can turn negative if you attempt many questions incorrectly.

IISER Seat Allotment Process

IISER typically conducts 8-9 rounds of online seat allotment. The rounds run from around August through September.

After each round, you choose to "Accept and Float" (stay in the pool for a better seat) or "Accept and Freeze" (confirm your current allotment). The final round closes admissions for the cycle.

IISER Admission Routes

Yes, IISER also admits students through JEE Advanced rank and the INSPIRE-SHE scholarship channel. If you have a strong JEE Advanced rank, you may not need to appear for the IAT at all.

All three routes lead to the same BS-MS Dual Degree programme. Check the official IISER 2026 admissions brochure on iiseradmission.in for eligibility details for each channel.

IISER Biology Sample Paper 2026 takes you through the 15-question Biology section of the IAT 2026 exam on June 07, 2026. Most questions are NCERT line-level recall, with +4 marks for each correct answer and a 1 mark cut for wrong ones. Collegedunia provides free IISER Biology sample papers with detailed solutions.

• Biology in IAT covers 33 chapters across Class XI and XII — the highest chapter count on the paper. Sample papers help you spot which NCERT lines, figures, and named examples actually show up in the exam.
• Most Biology questions test recall: recognising one-line facts, distinguishing similar terms like apomixis from polyembryony, and remembering classification examples. Sample papers train this recognition far better than rereading the textbook alone.
• The 45-minute Biology window is generous on a per-question basis if your NCERT reading is solid. Many students finish in 30 to 35 minutes with spare time for review. Sample papers tell you whether you are inside that range.

IISER Biology Sample Papers 2026: Download PDF

How to Solve IISER Biology Sample Papers

IISER Biology mostly tests NCERT line-level recall. The method below builds your speed on recognition without skipping the small chapters that quietly add up to 6 to 8 marks across a paper.

• Sit like you are at the centre: Set a 45 minute timer, keep your books and notes out of reach, and use only a plain rough sheet. Biology needs no calculator, but the CBT setup is still strict on phones, smartwatches, and any reference material.
• Sort by question type in the first 2 minutes: Direct fact-recall questions (definitions, named examples, classifications) finish in under 30 seconds. Experiment-based or graph-reading questions take 90 seconds to 2 minutes. Spot which is which before solving.
• Open with the recall chapters you know best: Plant Kingdom, Animal Kingdom classifications, Biomolecules, and Cell Cycle terms usually settle in under a minute each. Five of these clear 20 marks in roughly 4 to 5 minutes and free up time for harder Genetics and Reproduction questions.
• Trust your first answer on direct facts: When a question is straight NCERT, your first instinct is usually correct. Second-guessing on names of examples, classifications, or chapter definitions drops more marks than it saves.
• Skip questions with close-sounding terms: Spermatogenesis versus Oogenesis, Apomixis versus Polyembryony, Mitosis versus Meiosis — these pairs hide the trap. If you cannot tell the pair apart in 30 seconds, leave it. The 0 of a skipped question is better than the -1 on a guess between two similar words.
• Review the paper properly:
  • Score Class XI chapters and Class XII chapters separately to see which half is leaking marks.
  • Tag each wrong answer: confused terms, missed an NCERT line, misread the question, or no idea about the chapter.
  • Build a notebook of close-pair terms, named examples, and one-line definitions you keep missing.
  • Reopen every wrong question the next day and find the exact NCERT page or paragraph the answer came from.

IISER Biology Sample Paper 2026: Importance

Biology is the easiest section to score 50 or more out of 60 in IAT, but only for students who have read NCERT carefully. Sample papers help you check whether your reading is at the line-by-line depth IAT actually tests.

• NCERT line depth check: IAT Biology pulls questions from one-line facts and small box-text in NCERT. Sample papers expose the lines you skimmed and the figures you skipped.
• Time generosity in Biology: Most students with steady NCERT reading finish Biology in 30 to 35 minutes of the 45-minute window. That spare time becomes valuable in the longer Maths or Physics sections later.
• Trap-pair recognition: Reproduction, Genetics, and Plant Physiology each contain close-sounding pairs that hide the right answer. Sample papers train your eye to spot the trap before you commit.
• Plant Physiology weight: Photosynthesis, Respiration in Plants, and Plant Growth Hormones look dry but consistently give 2 questions every year. Two days of focused revision can earn back 8 marks.
• Ecology as easy marks: Biodiversity hotspots, Ramsar sites, biosphere reserves, and named examples are direct recall worth 2 questions per year. Skipping this chapter group means leaving 8 marks on the table.
• Score tracking that holds up: Biology scores across 4 to 5 sample papers tend to be the most stable of all four IAT subjects. If you average 50 across sample papers, your actual paper usually lands within a 5-mark range of that.

Why Choose Collegedunia's IISER Biology Sample Paper 2026

Most IISER Biology sample papers online overlap heavily with general medical entrance content, which goes deeper than IAT actually tests. Collegedunia's 2026 papers stay at NCERT line-level depth, which is exactly what the IISERs ask.

• Built for IAT 2026: Every paper follows the 15-question Biology pattern and the +4/-1 marking the actual exam uses.
• NCERT-line depth: Questions are pulled from one-line facts, named examples, and small figures inside NCERT Class XI and XII. Nothing past NCERT.
• Solutions that point to NCERT pages: Each answer explains the concept and tells you the chapter or NCERT section the question came from. Review becomes a focused NCERT revision.
• Balanced chapter spread: No paper drowns you in Human Physiology and skips Plant Physiology. The mix follows the published IAT pattern across Diversity, Cell, Physiology, Reproduction, Genetics, Biotech, and Ecology.
• Quick review flow: Hyperlinked navigation between each question and its solution, so review feels like one continuous reading session.
• Free download: Every IISER Biology sample paper PDF is free. No signup, no email, no payment.

IISER Biology Sample Paper 2026: Understanding the Exam Pattern

IAT 2026 runs on June 07, 2026 across 4 subjects of 15 questions each. Biology is the most chapter-heavy of the four, but every mark you score in it counts equally toward your final 240. The full pattern is given below with Biology at the top.

IAT Marking Scheme: +4 for every correct answer, -1 for every wrong answer, 0 for unattempted questions. All four section scores add to your final 240.

Duration: 180 minutes total (about 45 minutes for Biology) | Mode: CBT (online) | Language: English | Calculator: Not allowed

IISER Biology Sample Paper 2026: Topic-wise Weightage

Human Physiology, Genetics, and Reproduction are the three biggest chapter groups in IAT Biology, together covering more than half the section. The table below shows the typical question spread across NCERT Class XI and XII chapters.

Based on the previous year's trend analysis. The IISERs do not officially release chapter-wise weightage. IISER Biology stays strictly within the NCERT Class XI and XII scope.

Mistakes to Avoid While Solving Sample Papers

IISER Biology mistakes usually come from over-confidence after general bio reading, and from confusing close-sounding terms in Reproduction and Genetics. Watch out for these.

• Reading NCERT only once and skipping practice. IAT Biology tests single-line facts from random NCERT pages, and you cannot spot the pattern without solving sample papers first.
• Guessing on close-pair terms. Spermatogenesis vs Oogenesis, Apomixis vs Polyembryony, Mitosis vs Meiosis flip on one syllable. A wrong guess cuts 1 mark, and the words look similar enough that you may not realise you are guessing.
• Skipping Plant Physiology because it feels dry. Photosynthesis, Respiration in Plants, and Plant Growth Hormones give 1 to 2 marks every year — easy marks if you read NCERT carefully.
• Over-preparing with medical-entrance-level depth. IAT Biology stays NCERT-level. Spending time on application-style problems from heavier prep material wastes time on patterns IAT does not test.
• Skipping Ecology and Biotechnology in the final week. These chapters look small but pay back 3 to 4 marks every year. Two days of revision here is the easiest score lift.
• Solving sample papers without reviewing afterward. Biology sample papers give back their full value during the review, when you trace each wrong answer back to its NCERT line.

FAQs

IISER Chemistry Sample Paper 2026 sets you up for the 15-question Chemistry section of the IAT 2026 exam scheduled for June 07, 2026. Each Chemistry question is worth +4 marks, with a 1 mark cut for wrong answers, and all questions stay inside NCERT Class XI and XII. Collegedunia provides free IISER Chemistry sample papers with detailed solutions.

• Chemistry mixes Physical, Inorganic, and Organic branches roughly evenly across the 15 questions. The three branches need different approaches: quick recall for Inorganic, mechanism understanding for Organic, and mental arithmetic for Physical Chemistry numericals.
• The IAT 2026 Chemistry syllabus is fully NCERT-based. Specialised pericyclic reactions, advanced coordination crystal field splitting, and rare named reactions outside NCERT are not in scope. Sample papers tuned to this scope keep your prep efficient.
• Without a calculator, Chemistry numericals on mole concept, pH, and the Nernst equation move at the speed of your mental arithmetic. Sample paper practice without a calculator is the only way to get faster at these.

IISER Chemistry Sample Papers 2026: Download PDF

How to Solve IISER Chemistry Sample Papers

IISER Chemistry sits across three branches: Physical, Inorganic, and Organic. Each needs a different attack, and the method below splits your 45 minutes accordingly.

• Match the centre setup: Sit with a 45 minute timer, a plain rough sheet, no calculator, and no formula notes. The CBT exam gives you a basic interface and not much else, so your practice setup should match.
• Scan all 15 questions first: Inorganic theory and one-line definitions usually take under a minute each. Physical Chemistry numericals run 3 to 4 minutes. Organic mechanisms sit in the middle. Mapping this in the first 2 minutes saves you 5 minutes later.
• Pick up the fast Inorganic marks early: Periodic Table trends, s and p block exceptions, and Coordination Compound names usually settle in under a minute each. Three or four of these clear in 4 to 5 minutes and leave room for the longer questions.
• Skip cleanly on close-name questions: Organic IUPAC names and Coordination nomenclature flip on a single wrong prefix. Each wrong answer costs 1 mark, and the gain from a 50-50 guess is negative. If two options seem possible, leave the question.
• Spot the out-of-scope traps: If a reaction or compound does not appear in your Class XI or XII NCERT books, the sample paper is either old or made for a different exam. Move past those questions and check where the paper came from before doing more of it.
• Review the paper properly:
  • Score Physical, Inorganic, and Organic separately and find which branch dropped the most marks.
  • Tag each error: wrong reagent, wrong stereochemistry, calculation slip, or named-reaction confusion.
  • Keep a notebook for named reactions, d-block colour exceptions, and tricky IUPAC names.
  • Redo the wrong questions the next morning, untimed, and find the NCERT line each one came from.

IISER Chemistry Sample Paper 2026: Importance

A well-prepared Chemistry section can pick up 50 to 55 of the 60 marks in IAT, because the questions stay close to NCERT lines. Sample papers tell you where your NCERT reading is weak and which chapter group gives back the most marks.

• Marks-by-branch awareness: With 5 to 6 questions each from Physical, Inorganic, and Organic, you should know roughly what to expect from each branch before exam day. Sample papers train this expectation.
• Pattern-frequency spotting: After 4 sample papers you will notice which named reactions, periodic exceptions, and Coordination Compound questions repeat. Those repeats become the easiest marks on the actual paper.
• Tight skip rule for Chemistry: Small differences in IUPAC prefixes or hybridisation labels can flip the answer. Sample papers train you to recognise when guessing is unsafe and skipping is the better choice.
• Coordination Compounds payoff: The chapter sits in just 4 to 6 NCERT pages but consistently gives 1 question every year. Sample papers give you enough of these questions to settle the chapter fully.
• Mole concept under the surface: Mole, stoichiometry, and percentage composition feed into Equilibrium, Electrochemistry, and Kinetics numericals. Sample papers reinforce this base across all three.
• Score tracking that holds up: Your Chemistry score across 4 to 5 sample papers tends to predict your actual IAT Chemistry score, since the difficulty stays close to the published pattern.

Why Choose Collegedunia's IISER Chemistry Sample Paper 2026

Most Chemistry sample papers online either rehash easy fact-recall questions or pile on advanced organic reactions outside NCERT. Collegedunia's IAT 2026 papers stay at the right difficulty by sticking to NCERT line-level testing.

• Aligned to IAT 2026: Every paper follows the 15-question Chemistry pattern, the +4/-1 marking, and the 45-minute pace the actual exam uses.
• Strictly NCERT: No pericyclic reactions, no advanced crystal field splitting, no exotic named reactions outside Class XI and XII NCERT.
• Step-by-step solutions: Each solution points to the exact NCERT page or concept the question came from, so you can cross-check during review.
• Even branch split: 5 Physical, 5 Inorganic, 5 Organic in most papers. No single paper drowns you in one branch.
• Linked navigation: Each question links to its solution and back, so you do not lose your place during a 15-question review.
• Free access: Download, no signup, no email, just open the PDF and start solving.

IISER Chemistry Sample Paper 2026: Understanding the Exam Pattern

IAT 2026 runs on June 07, 2026 across 4 subjects of 15 questions each, all in Computer-Based Test mode. Chemistry is one of those subjects, and every mark you score in it counts toward your final 240. The full pattern is given below with Chemistry at the top.

IAT Marking Scheme: +4 for every correct answer, -1 for every wrong answer, 0 for unattempted questions. All four section scores add to your final 240.

Duration: 180 minutes total (about 45 minutes for Chemistry) | Mode: CBT (online) | Language: English | Calculator: Not allowed

IISER Chemistry Sample Paper 2026: Topic-wise Weightage

Class XI Chemistry covers about 6 of the 15 IAT questions, and Class XII covers the rest. The table below shows the typical chapter mix across both years.

Based on the previous year's trend analysis. The IISERs do not officially release chapter-wise weightage. IISER Chemistry stays strictly within the NCERT Class XI and XII scope.

Mistakes to Avoid While Solving Sample Papers

Most IISER Chemistry mistakes come from over-relying on prep material that goes beyond NCERT, and from skipping the small chapters that quietly add up to 6 to 8 marks every year.

• Practising on advanced reaction lists outside NCERT. IAT 2026 tests only the syllabus listed in the official information bulletin, so anything past that wastes prep time.
• Skipping Some Basic Concepts of Chemistry because mole concept feels too elementary. The chapter shows up directly in 1 question every year and indirectly in Equilibrium and Electrochemistry numericals.
• Memorising named reactions without understanding their mechanisms. IAT tests reagent recognition and mechanism logic more than the name of a reaction.
• Guessing on Coordination Compound IUPAC names. A single ligand-order slip flips the answer. Skip the question if you are not sure of the exact prefix and order.
• Using a calculator during sample paper practice. IAT does not allow one, and practising with a calculator slows you down on exam day.
• Solving sample papers without reviewing them afterward. Half the value of a sample paper sits in the review, not the attempt itself.

FAQs

The Round 1 seat allotment results for the IISER Aptitude Test (IAT) 2026 were officially released by the Indian Institute of Science Education and Research (IISER) Berhampur on July 24, 2026. Following the conclusion of the registration and choice-filling phase on July 9, 2026. For those who have been allocated seats, the payment of the Seat Acceptance Fee (SAF) and the submission of willingness must be completed by July 28, 2026. If the allotted seat is not accepted within this stipulated timeframe, the admission offer will be withdrawn, and the applicant will be rendered ineligible for any subsequent rounds. Moving forward, the IAT 2026 Round 2 seat allotment is scheduled to commence on August 1, 2026.

Source: iiseradmission.in/

IAT 2026 Latest Updates

• The Round 1 seat allotment for the participating institutes was officially published on July 24, 2026.
• The initial counselling registration and choice-filling window was successfully concluded earlier on July 9, 2026.
• Allotted candidates must submit their seat willingness and pay the mandatory Seat Acceptance Fee (SAF) no later than July 28, 2026.
• The Round 2 seat allotment is expected to be released on August 1, 2026, for candidates awaiting subsequent upgrades.

Seat Acceptance Fee (SAF)

The Seat Acceptance Fee is required to be paid only after an offer of admission has been made to the candidate. The SAF is to be paid as per the category mentioned in the candidate's offer letter.

• A sum of Rs. 35,000/- (comprising Rs. 25,000/- plus a non-refundable administrative fee of Rs. 10,000/-) is required to be paid by candidates belonging to the General/EWS/OBC/OBC-NCL/PwD/KM/Kashmiri Pandit/Kashmiri Hindu Families (Non-Migrants) categories.
• A sum of Rs. 17,500/- (comprising Rs. 12,500/- plus a non-refundable administrative fee of Rs. 5,000/-) is required to be paid by candidates belonging to the SC/ST categories.
• Once a candidate is registered at the allotted IISER, the SAF is adjusted against the first semester fee.

Source: iiseradmission.in/

IAT 2026 Important Dates

Source: iiseradmission.in/

• IISER 2026 counselling and seat allotment will be held in 8 to 9 rounds , depending on seat availability.
• Around 2,343 BS-MS seats are available across IISER Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur.
• After each round, you must choose to freeze or float your allotted seat and pay the Seat Acceptance Fee (SAF) within the given deadline.

IISER Counselling 2026: Overview

IISER Counselling 2026 is the mandatory online process for every student who has qualified the IISER Aptitude Test (IAT) 2026 through the SCB, KVPY, or JEE Advanced channel and appears in the merit list. The Joint Admissions Committee (JAC), with IISER Berhampur as the organising institute for 2026, runs this centralised counselling for all seven IISERs. Your rank alone does not guarantee a seat - you must register, fill choices, and participate in the allotment rounds to get admission.

Seats are allotted based on your IAT rank, category, and the order of preferences you submit. The process runs entirely online through the admission portal, and you do not need to visit any campus until the final reporting stage.

IISER Counselling 2026: Important Dates

Note: The exact schedule for Round 1 onward will be released on iiseradmission.in. Bookmark this page for updates.

IISER Counselling Eligibility 2026

Before you register, check that you meet the basic eligibility conditions below.

• Your name must appear in the IAT 2026 merit list for your admission channel (SCB, KVPY, or JEE Advanced).
• You must have passed Class 12 in the science stream with at least three of Physics, Chemistry, Mathematics, and Biology.
• General, EWS, and OBC-NCL students need a minimum of 60% aggregate in Class 12; SC, ST, and PwD students need a minimum of 55%.
• You must be an Indian citizen, PIO, or OCI to apply through the SCB or KVPY channel; foreign nationals can only be considered through the JEE Advanced channel.
• Your final Class 12 marksheet must be uploaded during counselling, even if you registered with provisional marks earlier.

IISER Counselling Registration 2026

Follow these steps to complete your counselling registration on the official portal.

1. Visit the official website, iiseradmission.in.
2. Log in using your IAT 2026 registered user ID and password.
3. Click on "Registration for Counselling Process."
4. Verify your personal, academic, and category details already on file.
5. Upload any pending documents as prompted by the portal.
6. Confirm your registration before the July 9, 2026 deadline.

Registering for counselling is mandatory - your IAT rank alone does not guarantee a seat. If you miss the registration deadline, you cannot take part in any seat allotment round.

IISER Choice Filling Strategy 2026

Choice filling decides which IISER and programme you can be allotted, so take your time on this step.

• Arrange all seven IISER campuses and available programmes in order of your genuine preference, from most wanted to least wanted.
• Fill as many choices as possible, ideally all available options, to maximise your chances across rounds.
• Do not leave out a campus just because it seems less competitive - a wider spread of choices protects you if your rank does not open a seat at your top preference.
• Once satisfied, lock your choices. You can usually edit the order until the choice-filling window closes, but not after.
• If your preferred seats fill up before your turn, you will not be considered for that choice in later rounds - so order choices realistically against your expected rank.

IISER Round-Wise Seat Allotment 2026

IISER Counselling 2026 will run in 8 to 9 rounds depending on how many seats remain unfilled after each round.

Once you receive an offer, log in to the portal, go to the "Decision Making" section, click "Click Here to View Allotted Seat," generate an OTP, and confirm your choice. If you choose to float, you retain your current seat while remaining eligible for an upgrade in later rounds. If you freeze, your current allotment becomes final and you exit the upgrade process.

Documents Required for IISER Counselling

Make sure your category certificate matches exactly what you declared during application - a mismatch, such as an outdated EWS or OBC-NCL certificate, can delay or block your admission.

IISER Reporting to Allotted College

Once your seat is finally confirmed, complete these steps to secure your admission.

1. Download your final admission/offer letter from the portal.
2. Pay any remaining admission fee as specified by your allotted IISER.
3. Submit your original documents for verification, either online or as instructed by the campus.
4. Report to your allotted IISER campus on the scheduled reporting date with all original documents.
5. Complete campus-specific formalities such as hostel allotment and orientation registration.

Freeze vs Float: What to Choose

This decision determines whether you stay open to a better seat or lock in your current one.

• Freeze if you are satisfied with your allotted IISER and programme - your seat becomes final and you exit further rounds.
• Float if you want a chance at a higher-preference IISER in later rounds. You keep your current seat safely while staying in the running for an upgrade.
• If you got your first choice, the float option will usually not appear, since there is nothing higher left to upgrade to.
• If you withdraw after paying the Seat Acceptance Fee, a portion of it is typically not refunded - check the exact withdrawal policy on the official portal before deciding.
• Floating carries no risk to your current seat, so when in doubt, float rather than freeze early unless you are completely certain of your choice.

IISER Counselling FAQs

IISER Mathematics Sample Paper 2026 mirrors the 15-question Maths section that runs in the IAT 2026 paper on June 07, 2026. Each correct answer adds 4 marks, each wrong one cuts 1 mark, and the entire syllabus stays inside NCERT Class XI and XII Mathematics. Collegedunia provides free IISER Mathematics sample papers with detailed solutions.

• Maths splits between fast-scoring chapters like Algebra and Inverse Trigonometric Functions, and slow Calculus and 3D Geometry problems that take 4 to 5 minutes each. The 3 minutes per question average hides this gap, and sample papers help you find your own pace inside each chapter.
• IAT Maths sticks to NCERT Class XI and XII strictly. There are no olympiad-style twists, no proofs, no application-heavy hybrid problems. Sample papers built on the 2026 scope keep you from wasting time on harder problem sets.
• No calculator means every Determinant evaluation, every Integration step, and every Probability ratio gets solved by hand. Sample papers train you to do these faster without losing accuracy.

IISER Mathematics Sample Papers 2026: Download PDF

How to Solve IISER Mathematics Sample Papers

Maths is the section where time discipline decides your score. Calculus and 3D Geometry questions can each take 5 minutes, while Inverse Trigonometric Functions and basic Algebra settle in under a minute. The method below uses that gap to your advantage.

• Replicate the centre setup: Use a 45 minute timer, a plain rough sheet, no calculator, and no formula notes. IAT does not allow any external aids in the Maths section, so practising without them gets your mind ready for the real test.
• Sort the 15 questions by expected time: Spend the first 2 minutes flagging the quick wins (Matrices basics, Inverse Trig, Determinants of 2x2 type) and the long solvers (Integration, 3D Geometry, Conic Sections). The order you attempt them in matters more than raw speed.
• Open with the chapters that need almost no setup: Matrices, Inverse Trigonometric Functions, Linear Programming basics, and elementary Probability questions usually finish in under a minute each. Three or four of these clear 12 marks before the 8-minute mark.
• Skip Integration that does not click in 90 seconds: Integration by substitution, by parts, or partial fractions can swallow 4 minutes if the first attempt is wrong. Mark it for review and move on. A skipped 0 beats a wrong -1 that cost you 4 minutes of solving.
• Watch for sign errors and limits of integration: The most common Maths mistake on IAT is a sign flip in Determinants or a wrong upper limit in definite Integration. Double-check signs before you mark the option.
• Review the paper properly:
  • Score Algebra, Calculus, Geometry, and Probability separately to see which chapter group leaked marks.
  • Tag each wrong answer: sign error, formula slip, misread question, or no idea about the chapter.
  • Keep a notebook of integration formulas, vector identities, and probability rules you keep forgetting.
  • Solve the wrong and skipped questions again the next morning, untimed, until the right method becomes automatic.

IISER Mathematics Sample Paper 2026: Importance

Maths is the section where small slips compound into big mark losses. A clean 12 of 15 attempt with no slips beats a rushed 14 of 15 with three wrong answers. Sample papers train you to avoid the slips that cost the most.

• Calculus weight on the paper: Calculus chapters (Limits, Differentiation, Applications, Integration) together cover about 4 of the 15 questions. Sample papers tell you whether your Integration speed is exam-ready or still slow.
• Time discipline matters most here: Maths has the widest spread of per-question time. A 5-minute Integration sits next to a 30-second Inverse Trig question. Sample papers train you to recognise which is which in seconds.
• The Determinant calculation habit: Without a calculator, even a 3x3 Determinant takes 30 to 45 seconds. Sample papers help you make this routine so it stops eating into your problem-solving time.
• Vectors and 3D Geometry as a steady mark group: These chapters give about 2 questions every year, but most students do not practise them enough. Sample papers give you the volume needed to spot the standard patterns.
• Probability needs both Class XI and Class XII covered: Class XI Probability is basic counting, while Class XII includes Bayes' theorem and conditional probability. Sample papers show you which type came up in the year you are practising.
• Score predictability: Maths scores across 4 to 5 sample papers tend to be the most stable predictor of your actual IAT Maths score. If you average 45 across sample papers, expect roughly the same on test day.

Why Choose Collegedunia's IISER Mathematics Sample Paper 2026

Many IISER Mathematics sample papers online either drop into easy fact-recall (which IAT does not test) or pile on olympiad-level twists (which IAT also does not test). Collegedunia's 2026 papers stay at the right NCERT depth.

• Tuned to IAT 2026: Every paper follows the 15-question Maths pattern and the +4/-1 marking the actual exam uses.
• Strictly NCERT depth: Questions stay inside Class XI and XII NCERT. No olympiad-style twists, no proofs, no application-heavy hybrids.
• Step-marked solutions: Every solution shows the algebraic steps, the integration substitutions, and the geometry constructions in full. You can spot exactly where your method differs.
• Spread across the syllabus: One paper does not load up 6 Integration questions and skip Algebra. The chapter mix follows the published IAT pattern.
• Easy review flow: Hyperlinked navigation between each question and its solution, so you can flip back and forth during review without scrolling.
• Free download: Every IISER Mathematics sample paper PDF is free. No signup, no email, no payment.

IISER Mathematics Sample Paper 2026: Understanding the Exam Pattern

IAT 2026 happens on June 07, 2026 across 4 subjects worth 60 marks each. Maths is one of those four, and a strong Maths score has no shortcut: you have to solve every question fully because partial credit does not exist on MCQs. The full pattern is given below with Maths at the top.

IAT Marking Scheme: +4 for every correct answer, -1 for every wrong answer, 0 for unattempted questions. All four section scores add to your final 240.

Duration: 180 minutes total (about 45 minutes for Maths) | Mode: CBT (online) | Language: English | Calculator: Not allowed

IISER Mathematics Sample Paper 2026: Topic-wise Weightage

Calculus and Algebra together cover roughly 40% of the IAT Maths section, with the rest spread across Coordinate Geometry, Vectors, Matrices, and Probability. The table below shows the typical distribution across NCERT chapters.

Based on the previous year's trend analysis. The IISERs do not officially release chapter-wise weightage. IISER Maths stays strictly within the NCERT Class XI and XII scope.

Mistakes to Avoid While Solving Sample Papers

IISER Mathematics mistakes usually come from rushing through Calculus and from skipping the small chapters that pay back fast. Watch out for these.

• Avoiding Integration practice because it feels slow. Integration alone shows up in about 2 questions every year, and that is 8 marks you cannot afford to miss.
• Skipping Vectors and 3D Geometry because they look intimidating. NCERT keeps both chapters at a basic geometric level, and 2 questions every year reward steady revision.
• Trusting shortcut tricks on Limits and Indeterminate Forms. IAT MCQs sometimes set up options that match the wrong shortcut. The full method beats the trick on this paper.
• Guessing on Determinant questions. A single sign error in a 3x3 expansion flips the entire answer, so skip if your row-reduction does not feel right.
• Practising with a calculator. IAT 2026 does not allow one, and a calculator habit slows you down at the centre when every Determinant and Probability ratio has to be done by hand.
• Solving without reviewing afterward. A sample paper gives back its real value during the review, not during the attempt.

FAQs

IISER Physics Sample Paper 2026 follows the 15-question Physics section in the IAT 2026 paper. You face 15 single-correct Physics MCQs in the exam, each worth +4 marks, with -1 for a wrong answer, all from NCERT Class XI and XII Physics. Collegedunia provides free IISER Physics sample papers with detailed solutions.

• You get about 45 minutes for the Physics section out of the full 180-minute paper, which works out to 3 minutes per question. Sample papers help you find your own pace between quick formula-direct questions and the longer multi-step ones.
• IISER Physics stays inside NCERT Class XI and XII. There are no advanced application questions, no out-of-syllabus topics. Sample papers built on the 2026 scope keep your prep aligned with what actually appears in the exam.
• IAT does not provide an on-screen calculator, and personal calculators are not allowed. That makes mental arithmetic a real prep target for Physics numericals. Sample papers train this from the start, so you do not get stuck on simple calculations on exam day.

IISER Physics Sample Papers 2026: Download PDF

How to Solve IISER Physics Sample Papers

IISER Physics gives you 45 minutes for 15 questions, with no calculator and strict NCERT scope. The method below builds your pace around those two limits.

• Set real exam conditions: Set a 45 minute timer for the Physics section, keep your phone away, and use only what IAT allows on screen. No calculator, no log tables, no formula sheets. Match the CBT setup you will see at the centre.
• Quick scan first: Spend the first 2 minutes looking at all 15 questions. Mark the formula-direct Mechanics, Electrostatics, and Optics ones as quick wins. Save the longer Electromagnetic Induction and Modern Physics multi-step problems for the middle of the section.
• Start with Class 12 chapters if they are fresher: A typical IISER Physics paper splits roughly half-half between Class 11 and Class 12 topics. If your Class 12 prep is more recent, attempt those questions first and pick up Class 11 numericals later.
• Watch the negative marking: Each wrong answer cuts 1 mark out of the +4 a correct answer earns. Two wrong guesses already drop you 2 marks, which can move you 50 ranks in IAT.
• Use mental arithmetic for numericals: Without a calculator, even simple multiplication and division take longer than you expect. Practise rounding off and back-of-the-envelope checks on Mechanics and Current Electricity numericals during sample paper review.
• Review the paper properly:
  • Note the time you spent on Class 11 mechanics versus Class 12 electricity.
  • Tag each wrong answer by reason: wrong formula, sign error, misread question, or no idea about the topic.
  • Keep a small notebook of formulas you keep forgetting, and read it once a week.
  • Reattempt every wrong and skipped question the next day, untimed, so the right method sticks.

IISER Physics Sample Paper 2026: Importance

Physics in IISER carries 60 marks just like every other subject, and all 60 count toward your final score. A strong Physics score is one of the fastest ways to push your total past the cut-off.

• Reading the 60-mark structure: Physics carries 60 marks across 15 questions, which means each question is worth +4 marks. Even a clean 12 out of 15 attempt at full accuracy gives you 48 of the 60 section marks.
• Time pressure inside Physics: 45 minutes for 15 questions sounds generous, but Electromagnetic Induction and Wave Optics questions can take 4 to 5 minutes each. Timed practice trains you to spot those before you start solving.
• Skip rule for Physics: Each wrong Physics answer cuts 1 mark. If you cannot rule out at least two of the four options, leave the question. The 0 mark of a skipped question is better than the -1 of a wrong guess.
• Spotting your strong chapters: IISER Physics has 14 Class 11 chapters and 14 Class 12 chapters. After 3 to 4 sample papers, you will see which 6 to 8 chapters you can score on quickly.
• Building the no-calculator habit: Sample papers train you to do faster mental Maths on Physics numericals. After 4 to 5 timed papers, simple calculation steps stop slowing you down.
• Tracking improvement subject by subject: Every section in IAT counts, so your Physics score matters just as much as Biology, Chemistry, or Maths. After 4 to 5 sample papers, you can see whether your Physics score is moving up, flat, or falling.

Why Choose Collegedunia's IISER Physics Sample Paper 2026

Many IISER Physics sample papers floating online add advanced twists or out-of-syllabus topics that the actual IAT never tests. Collegedunia's 2026 papers stay strictly inside the NCERT scope and follow the +4/-1 marking exactly.

• Latest and Accurate: Every question follows the IAT 2026 Physics pattern, with 15 single-correct MCQs and 60 marks for the section.
• Within NCERT scope: Questions stay inside Class XI and XII NCERT only. No advanced application-heavy twists, no out-of-syllabus topics.
• Detailed solutions: Each Physics solution walks through the formula choice, the working, and the common mistakes. Useful for Rotational Motion, Electromagnetic Induction, and Wave Optics where students often slip.
• Balanced chapter mix: Questions are spread across Mechanics, Properties of Matter, Electricity, Magnetism, Optics, and Modern Physics in the same proportion past IAT papers have shown.
• User-friendly: Hyperlinked questions and solutions let you jump from any question to its explanation and back, which saves time during review.
• Free to download: Every IISER Physics sample paper PDF is free. No login, no email, no payment.

IISER Physics Sample Paper 2026: Understanding the Exam Pattern

The IISERs conduct IAT 2026 on June 07, 2026 in Computer-Based Test mode. The paper has 4 subjects worth 60 marks each, and Physics is one of them. Every section counts toward your final score, so a strong Physics paper adds directly to your rank. The full pattern is given below with the Physics row highlighted.

IAT Marking Scheme: +4 for every correct answer, -1 for every wrong answer, 0 for unattempted questions. All four section scores add to your final 240.

Duration: 180 minutes total (about 45 minutes for Physics) | Mode: CBT (online) | Language: English | Calculator: Not allowed

IISER Physics Sample Paper 2026: Topic-wise Weightage

IISER Physics splits roughly half between Class XI and Class XII chapters. The table below shows how a typical 15-question paper is spread across the main chapter groups.

Based on the previous year's trend analysis. The IISERs do not officially release chapter-wise weightage. IISER Physics stays strictly within the NCERT Class XI and XII scope.

Mistakes to Avoid While Solving Sample Papers

IISER Physics mistakes usually come from using prep material with the wrong difficulty or scope, and from skipping mental arithmetic practice. Watch out for these.

• Do not use sample papers built for other entrance exams. The difficulty and pacing are tuned differently, and you will end up training the wrong habits for IAT.
• Do not use a calculator during sample paper practice. IAT does not allow one. Practising with a calculator builds a dependency that will slow you down on exam day.
• Do not over-prepare on out-of-NCERT topics. IISER Physics tests only the Class XI and XII NCERT scope. Advanced topics like Olympiad-style proofs or specialised application questions are not in the syllabus.
• Do not guess on partial confidence. The -1 penalty on a +4 mark question means three wrong guesses cancel one solid attempt across the paper.
• Do not ignore Units and Measurements or Dimensional Analysis. These two topics look too basic for an entrance exam but show up in almost every IAT Physics paper.
• Do not skip post-paper review. Five well-reviewed IISER Physics sample papers will move your score more than fifteen rushed ones.

FAQs

IISER Aptitude Test 2026 Question Paper will be available for download. IISER is conducting Aptitude Test 2026 on June 7 in single shift from 9 AM to 12 PM. IISER 2026 Question Paper consists of total 60 questions for 240 marks to be attempted in 180 minutes.

IISER Aptitude Test Paper is divided into 4 sections –Physics, Chemistry, Mathematics and Biology. 4 marks are awarded for every correct answer and 1 mark is deducted for every wrong answer.

IISER Aptitude Test 2026 Question Paper with Solutions PDF

IISER IAT 2026 Exam Pattern

IISER Aptitude Test 2026 Strategy