IISER Aptitude Test 2025 Exam Date, Brochure, Registration, Eligibility Criteria
Last Updated : 21 April, 2025.
Latest News : The IISER Aptitude Test (IAT) 2025 application form submission is closed. IISER correction/edit of application form facility will start at 10:00 AM, April 21, 2025 and closes sharply at 5:00 PM, April 22, 2025. Admission to IISER 2025 is exclusively through the IISER Aptitude Test (IAT), which is a computer-based test conducted on Sunday, May 25, 2025 at 9:00 AM, at various centres across the country.
To get high quality Science education, Government of India, has set up seven Indian Institutes of Science Education and Research (IISERs) at Pune, Bhopal, Kolkata, Mohali, Berhampur, Thiruvananthapuram and Tirupati. IISER entrance exam (called as IISER Aptitude Test) is conducted annually in computer-based mode by IISER for admission in BS (four year degree) and Integrated BS-MS (five year dual degree) courses. From 2023-24 academic session, along with IISER, IISc Bangalore and IIT Madras (4 Year BS Programme) also considering IISER aptitude test for admission in Bsc/BS courses.
Here you will get the complete details about IISER entrance test, exam date, brochure, application form, registration, how to apply, eligibility criteria, paper pattern, admission process, number of seats in IISER.
For IISER aspirants : Best Books for IISER Aptitude Test Preparation
IISER Aptitude Test 2025 [Table of Contents]
IISER Aptitude Test Exam Date 2025
IISER Aptitude Test 2025 exam date is May 25, 2025. IISER entrance exam is conducted in computer-based mode once a year.
Best Online Crash Course for IISER Aptitude Test 2025 : Course Details and Admission Process
Given below is the exam schedule of IISER Aptitude Test 2025 :
| IAT 2025 Exam Schedule |
Important Dates |
| IISER Aptitude Test 2025 Registration (IAT Online Application) |
March 10, 2025 |
| IISER Aptitude Test 2025 Registration Last date |
April 15, 2025 |
| Corrections in application form |
April 21 - 22, 2025 |
| IAT Admit Card (Hall Ticket) Download |
May 15, 2025 |
| IISER Aptitude Test 2025 Exam Date |
May 25, 2025 |
| IISER Aptitude Test 2025 Answer Key Display |
May 25, 2025 (after the IAT 2025) |
IISER 2025 Information Brochure [Bulletin]
IISER aptitude test 2025 information brochure (bulletin) is released. Download IISER 2025 Information Brochure to get more details about the aptitude test and admission process.
IISER Aptitude Test 2025 Registration and Application Form
The important points about IISER registration and application form:
- Students who have passed/ appearing in grade 12 can apply for IISER aptitude test.
- Candidates have to apply online through the IISER website.
- Candidates should register through a valid email-id and phone number.
- The IISER application process will contain various steps like registration, filling up of application form, documents uploading, online fee payment, etc.
- After completion of the application process, candidates are advised to print the application form and fee payment proof for any further use in future.
How to Apply for the IISER Aptitude Test 2025?
Steps to fill the IISER Aptitude Test online application form.
- Open the IISER application portal.
- Read the important information and instructions.
- Click on "Click here to start the Application".
- Under General Links, Go To Register "Click here".
- Register to get User ID and Password, Verify through OTP and captcha.
- Fill the online application form.
- Upload the required images of documents.
- Pay the application fee and save/print the application form.
IISER Aptitude Test Preparation Strategy + Study Plan + Online Coaching
Application Fee for the IISER Aptitude Exam
The application fee for IISER Aptitude exam is Rs.2,000 for General/ EWS/ OBC-NCL students and Rs.1,000 for SC/ ST/ PWD/ Kashmiri migrants students. The application fee for foreign nationals is Rs. 12,000/-.
IISER Eligibility Criteria 2025
Eligibility Criteria for IISER 2025 through IAT :
- Candidate must be an Indian national or PIO/ OCI/ Foreign National.
- Candidates must have passed the Class XII (or equivalent) examination in 2023 or 2024 or 2025 with science stream from any board recognized by the Council of Boards of School Education (COBSE) in India.
- Candidates must have taken at least three subjects among Biology, Chemistry, Mathematics and Physics during their Class XII (or equivalent) exam.
- Candidates belonging to GEN/OBC and OBC-NCL should have scored a minimum of 60% marks in aggregate or equivalent grade in the qualifying examination.
- Candidates belonging to SC/ST/PwD should have scored a minimum of 55% marks in aggregate or equivalent grade in the qualifying examination.
See the complete eligibility criteria for IAT
Documents required to fill IISER application form :
- Class X certificate.
- Class XII (or equivalent examination) certificate/ marks sheet.
- If the class XII (or equivalent) marks sheet is not available now, then you can instead upload a signed declaration form - “DECLARATION BY THE CANDIDATE IN LIEU OF ELIGIBILITY EXAM CERTIFICATE/MARKSHEET” (given in IISER information brochure). Fill up the form, sign it, scan it and then upload. The scanned copies of the actual marks sheet must be uploaded on or before 7th July 2025, failing which you will not be allotted a seat in any of the IISERs.
- Category certificate (if applying under EWS, OBC, SC/ ST, PwD category).
IISER Aptitude Test Pattern 2025
The IISER Aptitude Test 2025 (IAT-2025) will be a computer-based, 3-hour test covering Mathematics, Physics, Chemistry and Biology. The IISER aptitude test will have multiple choice type questions with only one correct answer. Each correct answer will be awarded 4 marks. Each incorrect answer will lead to the deduction of 1 mark.
Related Page : IISER 2025 Exam Pattern
IISER Admission Channels 2025
The admission to IISER 2025-26 session will be conducted on the basis of only IISER Aptitude Test.
Kishore Vaigyanik Protsahan Yojana (KVPY) Channel [No longer available as KVPY exam is discontinued from 2022]Joint Entrance Examination (Advanced) of the Indian Institutes of Technology Channel- IISER Aptitude Test (IAT) Channel
IISER Admission Process 2025 for Bsc/ Integrated MSc
IISER will take admission to Bsc/ Integrated MSc programs on the basis of IISER Aptitude Test (IAT). IISER Aptitude Test will be conducted in online mode. JEE and KVPY channels are no longer valid for IISER admissions from the year 2024.
How to get admission in IISER through JEE? What JEE rank is required for admission in IISER?
Admission in IISER through JEE is not applicable from 2024. Candidates need to clear the IISER Aptitude Test for admission in IISER.
Candidates who clear JEE Advanced exam are eligible for admission in IISER. Candidates are not eligible for admission in IISER through JEE Main only. Candidates seeking admission in IISER through JEE should have a rank within 15,000 in the common rank list or in the respective category rank lists (GEN-EWS/OBC-NCL/SC/ST/PwD).
IISER Admission through SCB Channel
Candidates can take admission in IISER through SCB Channel (Percentage in State and Central Boards) by clearing the IISER Aptitude Test. Admission in IISER doesn't happen just on the basis of marks in board exams. Minimum 60% marks in class 12 boards is required to be eligible for admission in IISER.
Number of Seats in IISER 2025
The tentative total number of seats available for IISER 2025 BS-MS/BS programs is 2333, with each IISER having the following number of seats.
| IISER (BS-MS Program) |
Total Seats in IISER 2025 |
| IISER Pune |
288 |
| IISER Bhopal |
300 |
| IISER Kolkata |
280 |
| IISER Mohali |
270 |
| IISER Berhampur |
300 |
| IISER Thiruvananthapuram |
320 |
| IISER Tirupati |
350 |
| IISER (B. Tech. / BS Program) |
No. of Seats |
| IISER Bhopal (B. Tech.) |
140 |
| IISER Bhopal (BS in Economic Sciences) |
35 |
| IISER Tirupati (BS in Economic and Statistical Sciences) |
50 |
IISER Aptitude Test Syllabus 2025
The IISER entrance exam syllabus generally follows the NCERT syllabus of class XI and XII. Complete Syllabus of IISER Aptitude Test
IISER Aptitude Test for IISc Bangalore
IISER Aptitude Test is the new admission channel for IISc Bangalore Bachelor of Science (Research) program from 2023. Candidates interested in admission in IISc through IISER Aptitude Test must apply separately at both the IISc admission portal and IISER application portal.
IISER Aptitude Test for Admission in IIT Madras
IIT Madras will admit students on the basis of IISER Aptitude Test for admission in BS-Medical Sciences and Engineering program. Candidates interested in admission in IIT Madras through IISER Aptitude Test must apply separately at both the IIT Madras admission portal and IISER application portal.
IISER Entrance Exam - FAQs
How to get into IISER after 12th?
Any student who has passed/ appearing in class 12th (science stream) can get into IISER either through IISER aptitude test.
How much percentage is required in class 12th for IISER?
Class 12 marks matter in IISER. Candidates (GEN/OBC) scoring a minimum of 60% marks in class 12 are eligible for admission in IISER through IAT.
Is Math required in class 12 for admission in IISER?
No, Math is not mandatory for BS-MS degree programs in IISER. For admission to BS degree programs at IISER Bhopal, Mathematics as one of the subjects at class XII level is required.
Can PCB/ PCM students apply in IISER?
PCB and PCM, both science stream students can apply for BS- MS (five year) dual degree programs in IISERs. For applying to any of the BS degree programs, students must have Mathematics as one of the subjects in class XII.
Is PCMB compulsory for IAT exam?
PCMB in class 12 is not compulsory to take the IAT exam. Both PCM and PCB students can apply for IAT. However, PCMB students will have a slight advantage in the exam as IAT asks questions from both Math and Biology.
Can I give IISER aptitude test without biology? Is biology optional in IISER?
Though Biology is not compulsory in class 12 to give IISER aptitude test, it is not an optional subject in IAT exam. You have to attempt Biology, Math, Physics, Chemistry, all 4 subjects in the IISER aptitude test.
Can I skip biology in IISER?
No, you can't skip Biology in IISER aptitude test. There will be 15 questions from Biology in the IISER exam. You will lose 60 marks if you skip Biology in the IAT exam.
Can I skip Math in IISER?
No, you can't skip Math in IISER aptitude test. There will be 15 questions from Math in the IISER exam. You will lose 60 marks if you skip Math in the IAT exam.
Do I need to apply separately for each IISER?
No. All IISERs admit students through a common application process. One application form is valid for all the IISERs.
Can droppers appear for IISER Aptitude Test?
Yes, droppers can appear for IISER aptitude test. If you think you can prepare better for IAT by taking a drop, without worrying about school and board exams, then you can take a drop for IISER Aptitude Test.
Can International Board students apply for admission in IISER?
Yes, Indian students from all boards, including international education boards can apply for admission in IISER.
Can NRI/OCI/PIO students apply for admission in IISER?
Yes, NRI/OCI/PIO students can apply for admission in IISER. However, there is no separate quota for NRIs in IISER.
Related Pages :
IISER Previous Year Papers
Best Books for IISER Aptitude Test
IISER Cutoff and Closing Ranks
IISER Aptitude Test Competition Level, Questions Type
IISc Admission Process
IISc, IISER FAQs of NRI Students