IISER 2025 Eligibility Criteria (Reinstated): Check Educational, National, Performance Based, Reservation Criteria Here

Indian Institutes of Science Education and Research Entrance Exam 2025 ( IISER Entrance Exam )

Manisha
Manisha Kumari
Associate Senior Executive
Updated on Mar 10, 2025 15:24 IST

IISER Eligibility Criteria 2025 is an important specimen, also a pre-requisite needed by the aspirants to fill out the IAT 2025 application form and for the complete admission process. IAT 2025 Eligibility Criteria stipulates the minimal qualifications like educational, nationality and generic information required by the candidates. Read this Shiksha article to know the complete information on IISER Eligibility Criteria 2025 for the courses available by the various IISER participating institutes.

IISER Eligibility Criteria 2025

IISER Eligibility Criteria 2025 has been released by the exam officials on the official website. For the academic session 2025-2026, the exam officials had brought up some major changes in the IISER Eligibility Criteria 2025. Earlier they mentioned that IAT 2025 eligibility will be based on the Date of Birth Criteria instead of the year in which the candidates had passed their Class 12 examination. But later on, the exam officials reversed the eligibility and follows the IAT 2024 Eligibility Criteria.

Without satisfying the important requirements mentioned in the IISER 2025 eligibility criteria a candidate will not be able to participate in the IISER 2025 admission process and even if one does then they will lose their candidature at any stage of the examination.

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IISER Entrance Exam 2025 will be conducted on May 25, 2025 at various exam centres across the nation. Interested applicants are able to fill out the IAT 2025 application form from March 10, 2025 onwards. Interested candidates, before filling out the application form, must check the IISER 2025 eligibility criteria in order to not lose their candidature at any stage of the IAT 2025 admission process. The IAT 2025 eligibility criteria stipulate minimum qualifications, typically a bachelor's degree with a specified percentage of marks or equivalent qualifying exams.

Table of content
  • IISER 2025 Eligibility Criteria (Reversed)
  • IISER Eligibility Criteria 2025: Services of a Scribe
  • Academic Programmes Offered by IISER Exam 2025
  • IISER Entrance Exam 2025 Seat Matrix

IISER 2025 Eligibility Criteria (Reversed)

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IAT exam for BS-MS course admissions Eligibility Criteria:
The student should have done Class 12 from the science stream in the last three years - 2023, 2024, and 2025. 
The foreign students who have not completed this criteria, must upload an equivalence certificate issued by the Association of Indian Universities. 
The students must have taken a minimum of three subjects among Biology, Chemistry, Mathematics, and Physics in Class 12.
IISER 2025 Eligibility Criteria: Generic
Q:   I am currently in 11th. What is the appropriate time for me to apply for IISER entrance exam?
A:
Hi Sruti, As you are studying in class 11th, it is the best time to start your preparations for IISER. As IISER is one of the toughest exams, it will be better to give more time to yourself. The syllabus is same as class 11th and 12th. You can refer to NCERT for your preparation to clear your concepts and to make your fundamentals strong. Paper is based on your concepts only. You can make your important notes which will help you at the time of revision. You can solve as many as MCQs for your practice and complete mock test series to work on your strength and weakness. Good luck.
Q:   I want my IAT score to be re-evaluated. Is it possible?
A:

There is no provision for re-evaluation/re-checking of IAT result. The official notification reads, No correspondence in this regard shall be entertained. The candidates can only raise objections against the provisional answer key. Based on the objections raised by the candidates the final answer key and the result is released.

Q:   Does IISER have an age limit?
A:
No, there is no such age limit, but you can not take admission if you passed your school 3 years before the admission date, unless you go through the Joint Entrance Examination Advanced. Students should have qualified in the Joint Entrance Examination Advanced in the year 2022 and should have a rank within 15000 in the common merit list for General and Other Backward Class or in the respective category rank lists General-EWS, Other Backward Class-Non Creamy Layer, Schedule Caste, Schedule Tribe, and PwD. For more information, you may visit the Shiksha IISER page. (https://www.shiksha.com/science/iiser-entrance-exam). I hope this will help you.
The following are the eligibility criteria for the generic:

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  • Applicants must be Indian nationals, OCI/PIO/Foreign Nationals to apply for IAT 2025.
  • They should have completed class 12 with a minimum of three subjects from Biology, Chemistry, Mathematics and Physics.
  • Foreign nationals either should have completed class 12 or they need to upload an equivalence certificate.
  • Students of SC/ST/PwD categories need to have scored a minimum of 55% marks in aggregate in their class 12 exam. Other category students need to score a minimum of 60% marks in Class 12 exam.

IAT 2025 Eligibility Criteria: Performance Criteria in Class XII/equivalent examination

Check out the complete queries from here:

What if the Class 12 result is not declared, can a candidate apply?

Candidates whose Class XII (or equivalent) examination results have not yet been declared can apply for IAT 2025. However, their admission will be subject to fulfilling the minimum eligibility criteria given on the official website.

What happens if the candidate is appearing for Class 12 for the second time?

For candidates who had appeared in the Class XII (or equivalent) examination for the first time in 2024 and reappeared in any subject (for whatever reason) in 2025, the better of two performances will be considered.

What to do if the candidate's Class 11 and 12 results are clubbed together and declared?

If a board gives aggregate marks considering both Class XI and Class XII, then only Class XII (or equivalent) examination marks will be considered. If a board gives aggregate marks considering the results of all three years of a 3-year diploma or courses of equivalent duration, then only the marks scored in the final year will be considered. Similarly, the marks scored in the final two semesters will be considered for boards that follow a semester system.

What happens if the Board awards only letter grades instead of percentages?

If a board awards only letter grades without providing an equivalent percentage of marks on the grade sheet, the candidate should obtain a certificate from the board specifying the equivalent marks and submit it before the deadline for the mark sheet submission. In case the board does not provide such a certificate, the percentage marks will be assessed as follows:

percentage marks = (CGPA or CPI obtained × 100) / PS

where PS is the maximum value of the point scale used by the respective board.

IAT 2025 Eligibility Criteria: Reservation Policy

  • Scheduled Caste (SC) - 15per cent of seats
  • Scheduled Tribe (ST) - 7.5per cent of seats
  • Other Backward Classes belonging to the Non-Creamy Layer (OBC-NCL) - 27per cent of seats
  • Persons with Disability (PwD) with at least 40per cent impairment - 5per cent of seats (supernumerary)
  • Kashmiri Migrants - 3 seats per IISER (supernumerary)
  • Economically Weaker Section (EWS) - up to 10per cent (as per Government of India rules)
  • Note that the EWS/OBC-NCL certificate should be valid for the financial year 2025-25

Also Read:

IISER Entrance Exam 2025 Pattern IISER Entrance Exam 2025 Preparation IISER Entrance Exam 2025 Important Dates
IISER Entrance Exam 2025 Syllabus IISER Entrance Exam 2025 Books IISER Entrance Exam Question Paper

IISER Eligibility Criteria 2025: Services of a Scribe

  • As per the office memorandum of the Ministry of Social Justice and Empowerment, the PwD candidates who are visually impaired OR dyslexic (severe) OR have disability in the upper limbs OR have lost fingers/hands, thereby preventing them from properly operating the computer-based test platform may avail the services of a scribe (amanuensis) for the IISER Aptitude Test.
  • As per the office memorandum of Ministry of Social Justice and Empowerment candidates with less than 40per cent disability and having difficulty in writing may avail the services of a scribe (amanuensis). These candidates must also upload the “Disability and Difficulty in Writing Certificate” (see Downloads section) duly issued by the competent authority.
  • Eligible candidates who desire to avail the services of a scribe need to opt for this during the online application process of IAT 2025.
  • If it is found at any stage that a candidate has availed the services of a scribe, but is not eligible to do so, the candidate will be excluded from the process of evaluation, ranking, and admission. If such a candidate has already been admitted to any IISER, the candidate's admission will be cancelled. The opinion of the medical board constituted by individual IISER shall be final.

Academic Programmes Offered by IISER Exam 2025

IISERs offer admission into courses leading to BS-MS Dual Degree, and BS Degree (only at IISER Bhopal) Programs. Admissions are via the IAT Channel only. KVPY and JEE (Advanced) scorecards are no longer valid for admissions. Programmes offered by the participating IISER institutions are mentioned below:

  • Biological Sciences
  • Chemical Sciences
  • Earth & Climate Sciences/Earth & Environmental Sciences
  • Economic Sciences
  • Engineering Sciences (Chemical Engineering, Data Science & Engineering, Electrical Engineering & Computer Science)
  • Geological Sciences
  • Integrated & Interdisciplinary Sciences (Biological Sciences, Chemical Sciences, Mathematical Sciences, Physical Sciences)
  • Mathematical Sciences
  • Physical Sciences

Note: The Four-year BS program in Engineering Sciences and Economics Sciences is offered only by IISER Bhopal.

IISER Entrance Exam 2025 Seat Matrix

Candidates can check the IISER 2025 Seat matrix from here:

BS-MS Programme Number of Seats
IISER Berhampur 300
IISER Bhopal 300
IISER Kolkata 280
IISER Mohali 270
IISER Pune 288
IISER Tirupati 350
IISER Thiruvananthapuram 320
B. Tech. / BS Programme Number of Seats
IISER Bhopal (B. Tech.) 140
IISER Bhopal (BS in Economic Sciences) 35
IISER Tirupati (BS in Economic and Statistical Sciences) 50
Total 2333

Read More: List of IISERs in India: Courses, Fee, Admission Process, Placements & Cutoffs 

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About the Author
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Manisha Kumari
Associate Senior Executive
Being a post-graduate and BEd degree holder, I'm an innovative, task-driven and immensely motivated science enthusiast, making me a passionate content writer. I love providing meaningful and constructive articles in Read Full Bio
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