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Indian Institutes of Science Education and Research (IISER) has released the IISER IAT result 2025 on June 14, 2025. The result is released on the official website – iiseradmission.in. Candidates can access the portal on the official website with their user ID and password.
IISER 2025 counselling registration starts from June 26, 2025, 5 PM onwards. Candidate can login with the User ID and Password to fill out the IISER Academic Programme Preference Form. The last date to register is July 3, 2025 (5 PM).
Indian Institute of Science Education and Research (IISER) Tirupati, has released the IAT 2025 final answer key on June 24, 2025. The answer key is available in two languages – English and Hindi. The answer key has the questions from every subject.
Note: “Option (a)” is the correct answer for all the questions in all the subjects.
IAT provisional answer key was out on May 25, 2025, after the exam.IISER has opened the IAT 2025 Candidate Reponse and Objection Portal on May 29, 2025 at 5 PM. Candidates can access the portal on the official website with their user ID and password. Raise objections against any question or answer by June 1, 2025 (5 PM). Fill the objection form and pay Rs 100 for every objection.
The IISER aptitude test was being held on May 25, 2025, in a single shift. The exam started at 9:00 A.M. and was conducted till 12:00 P.M., in a CBT Mode in around 140 Exam centres across the country.
The eligibility criteria for IISER 2025 include a minimum of 60% marks in class 12 (or equivalent) with science subjects, along with a valid score in JEE Advanced, KVPY, or SCB (IISER aptitude test).
Indian Nationals or Overseas Citizens of India candidates can participate in the application process. The IISER Aptitude Test 2025 will be an online Computer-Based Test (CBT). The exam will last 3 hours. The question paper will contain 60 multiple-choice questions, equally distributed over four sections, each containing 15 questions.
The IISER offers around 2,363 seats for undergraduate programs across campuses. The IISER Aptitude Test (IAT) is held for admission to the science courses taught at IISER Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati, and some of the science courses at IISc Bangalore and IIT Madras.
IISER 2025 Latest Trends
- IISER Application Form 2025
- IISER 2025 Eligibility Criteria
- IISER Previous Years' Question Papers PDFs
This article contains a detailed overview of IISER 2025, including eligibility, key dates, application, syllabus, exam pattern, seats available, participating institutions, counselling, and more.
What is IISER IAT 2025?
IISER 2025 is a national-level entrance test held by the Indian Institutes of Science Education and Research (IISERs) for admission to their five-year BS-MS dual degree and four-year BS courses in science and research. IISERs are esteemed autonomous institutions founded by the Government of India under the Ministry of Education to facilitate advanced education and research in basic sciences.
Since 2024, the IAT (IISER Aptitude Test) has been the only entry point for admissions in IISERs, supplanting previous routes such as KVPY and JEE Advanced. The IAT evaluates a candidate's knowledge of fundamental science subjects: Physics, Chemistry, Mathematics, and Biology.
IISER 2025 Highlights
| Particulars | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2025 |
| Conducting Authority | IISER Admissions Committee |
| Official Website | iiseradmission.in |
| Mode of Exam | Computer-Based (Online) |
| Duration | 180 Minutes (3 Hours) |
| Subjects Covered | Physics, Chemistry, Maths, Biology |
| Total Questions | 60 (15 per subject) |
| Maximum Marks | 240 |
| Application Mode | Online |
| Courses Offered | BS-MS (5-year), BS (4-year) |
| Number of Institutes | 7 IISERs + IISc + IIT Madras |
IISER 2025 Important Dates
Students are required to remain informed about the official schedule to refrain from missing crucial events in the application and test process.
| Event | Date |
|---|---|
| Release of Application Form | March 10, 2025 |
| Last Date to Apply | April 15, 2025 |
| Correction Window | April 21 – 22, 2025 |
| Admit Card Release | First week of May 2025 |
| IAT 2025 Exam Date | May 25, 2025 |
| Result Declaration | June 24, 2025 |
| Counselling & Seat Allocation | June 26 to July 7, 2025 |
What is the date of the IAT exam 2025?
The IAT 2025 exam was conducted on 25th May 2025 from 9:00 AM in a Computer Based mode with a total of 60 MCQs divided equally among four subjects:
- Biology
- Chemistry
- Mathematics
- Physics
Each subject will comprise 15 questions, designed to test the candidate's proficiency and understanding in these core areas
IISER 2025 Eligibility Criteria
The IISER 2025 Eligibility Criteria define the academic and personal qualifications required for candidates aspiring to pursue the BS-MS dual degree program across the seven prestigious Indian Institutes of Science Education and Research (IISERs).
| Criteria | Details |
|---|---|
| Nationality | Indian Nationals, PIO, OCI; Foreign nationals (with equivalence certificate) |
| Year of Qualifying Exam | Must have passed Class 12 in 2023, 2024, or appearing in 2025 |
| Eligible Stream | Science stream with at least 3 subjects from Physics, Chemistry, Biology, Mathematics |
| Minimum Marks (General/OBC) | 60% aggregate or equivalent grade in Class 12 |
| Minimum Marks (SC/ST/PwD) | 55% aggregate or equivalent grade in Class 12 |
| Mode of Admission | IISER Aptitude Test (IAT) 2025 |
Who is eligible for IISER 2025?
Candidates, before applying for IISER 2025, should ensure that they qualify under the following criteria:
Educational Qualification:
- Candidates should pass Class 12 (or comparable) in Science stream with main subjects of Physics, Chemistry, and Mathematics and/or Biology.
- Year of passing should be 2023, 2024, or appearing in 2025.
Minimum Percentage:
- General / EWS / OBC-NCL: 60% aggregate in Class 12.
- SC / ST / PwD: 55% aggregate in Class 12.
Subject Requirement:
- At least three of the four core science subjects, namely, Physics, Chemistry, Biology, and Mathematics, must have been studied in Class 12.
Nationality:
- Indian nationals, Persons of Indian Origin (PIO), and Overseas Citizens of India (OCI) are eligible.
- Foreign nationals may have an alternative admission route based on IISER policies.
IISER 2025 Application Procedure
The whole application procedure is done online through the official IISER portal.
Step-by-Step Process:
- Registration: Candidates are required to register on the official website of IISER 2025 using their name, mobile number, and email ID.
- Enter Personal & Academic Details: Enter basic information such as date of birth, category, nationality, Class 10 and 12 marks, school name, and subjects.
- Upload Documents: Upload scanned passport-size photo, signature, Class 12 marksheet (if available), category certificate, and other supporting documents.
- Fee Payment: Pay the fee through credit/debit card, net banking, or UPI.
- Form Submission: Preview the filled application and submit. Download a copy for future reference.
IISER Application Fees:
| Category | Fee (INR) |
|---|---|
| General / OBC / EWS | ₹2,000 |
| SC / ST / PwD / KM | ₹1,000 |
Note: The fee is non-refundable and needs to be paid separately for every application cycle.
Documents Required
Candidates should keep the following documents ready in the prescribed format:
- Passport-size photo (JPG/JPEG, max 200 KB)
- Scanned signature (JPG/JPEG, max 200 KB)
- Class 10 and 12 marksheets (PDF/JPG, max 1 MB)
- Category certificate (PDF, max 1 MB)
- EWS/OBC-NCL/PwD/KM certificates (if applicable)
- Valid government-issued photo ID
IISER Aptitude Test 2025: Exam Pattern
It is essential to understand the exam pattern for proper preparation.
Key Features:
- Mode: Online (CBT)
- Duration: 3 Hours
- Total Questions: 60
- Sections: Physics, Chemistry, Mathematics, Biology (15 questions each)
- Marking Scheme: +4 for correct answer, −1 for incorrect answer
All sections are of equal weightage. There is no sectional time limit, and candidates can manage their time according to their preference.
IISER 2025 Syllabus
The syllabus is mainly drawn from the NCERT Class 11 and 12 syllabus. Candidates are advised to concentrate on fundamental concepts in the following subjects:
IISER Physics:
- Kinematics, Laws of Motion, Work and Energy
- Thermodynamics, Waves, Optics
- Current Electricity, Magnetism
IISER Chemistry:
- Atomic Structure, Chemical Bonding
- Thermodynamics, Equilibrium
- Organic Chemistry Basics, Hydrocarbons
IISER Mathematics:
- Algebra, Trigonometry, Coordinate Geometry
- Calculus, Vectors, Probability
IISER Biology:
- Cell Structure, Genetics, Human Physiology
- Plant Physiology, Ecology, Evolution
The full syllabus is available on the official IISER website and aligns closely with the JEE Main and NEET syllabi.
IISER 2025 Result
The result of IISER 2025 will be announced online in June 2025 at iiseradmission.in. Candidates can access their results using their login credentials.
How to Check IISER 2025 Result
- Visit the official IISER admission website.
- Click on the “IISER IAT 2025 Result” link.
- Log in using your User ID and password.
- View your total score, subject-wise marks, and rank.
- Download and save the result PDF for future reference.
Details Mentioned in Scorecard
- Candidate’s Name
- Roll Number / Application Number
- Subject-wise Marks
- Total Marks
- All India Rank
- Category Rank (if applicable)
- Qualification Status
No physical copy will be sent. Candidates must download the scorecard for counselling and verification.
Check IISER 2025 Results
Does IISER have scope in the future?
The IISER has a huge scope in the future, especially for students who wants to build their career in scientific research, innovation, and interdisciplinary scientifics. IISERs are premier institutions in India established by the Government of India under the Ministry of Education to promote high-quality education and cutting-edge research in the sciences.
Why IISER Has Strong Future Scope
| Aspect | Details & Insights |
|---|---|
| Academic Excellence | IISERs offer a rigorous 5-year BS-MS dual degree with strong foundational courses in the first two years and specialization in later years. Alumni data shows over 70% of IISER graduates pursue higher education (PhD, MS) at top global institutes like MIT, Stanford, Cambridge, and ETH Zurich. |
| Research Exposure | Each IISER provides extensive opportunities in labs, fieldwork, and funded research projects. As per recent IISER Pune stats, over 250+ undergraduates participated in funded projects in 2023 alone, including INSPIRE, KVPY, and DST grants. |
| Placements & Internships | Although focused on academia and research, IISERs are seeing growing interest from R&D firms, data science companies, and biotech industries. Companies like TCS Research, Dr. Reddy’s, and GE Healthcare have offered internships and roles to IISER students. In 2023, IISER Bhopal recorded placements with packages ranging from INR 6–12 LPA in private R&D roles. |
| Govt & International Opportunities | Many IISER students qualify for CSIR-NET, GATE, GRE, TOEFL, and are offered DAAD, SN Bose, and MITACS fellowships. Over 100+ students from IISER Mohali, Pune, and Kolkata went abroad for summer research in 2022–23. |
| Future-Ready Curriculum | The interdisciplinary model allows students to combine Physics with Computer Science, Biology with Data Analysis, and more, preparing them for emerging fields like quantum computing, bioinformatics, and AI in medicine. |
Who Should Consider IISER?
- Students who are deeply interested in scientific inquiry and discovery
- Aspiring researchers, academicians, or scientists
- Those aiming to pursue PhD abroad or in India at top institutions
- Students looking for a strong foundation in both theoretical and practical science
IISER 2025 Seat Matrix
The IISER Seat Matrix 2025 will have 1,520 seats available across the IISERs and associated institutions, revealing the limited yet prestigious nature of these programs.
The IISER Bhopal will have a maximum number of seats of 250, followed closely by IISER Pune, Kolkata, Mohali, and Thiruvananthapuram, each providing around 200 seats. IIT Madras is assumed to have the least seats available, i.e, 50.
With over 80,000+ applicants competing annually for these limited seats, the acceptance rate remains below 2%.
| Institute | Approx. Seats |
|---|---|
| IISER Bhopal | 250 |
| IISER Pune | 200 |
| IISER Kolkata | 200 |
| IISER Mohali | 200 |
| IISER Thiruvananthapuram | 200 |
| IISER Tirupati | 150 |
| IISER Berhampur | 150 |
| IISc Bangalore | 120 |
| IIT Madras | 50 |
Note: Final seat matrix will be confirmed by the respective institutes.
IISER Reservation Policy
IISER follows the Government of India's reservation policy:
- SC: 15%
- ST: 7.5%
- OBC-NCL: 27%
- EWS: 10%
- PwD: 5% (horizontal reservation)
Valid certificates must be uploaded during application to claim reservation. Check IISER 2024 Cutoff
IISER Participating Institutes
There are a total of 9 premier IISER Participating institutions for IAT 2025, seven of which are IISRs in Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati—offer the flagship 5-year BS-MS Dual Degree Program, designed to cultivate research-oriented students.
IISc Bangalore and IIT Madras also participate in the IAT 2025 admission cycle. IISc offers a prestigious 4-year BS (Research) program. Meanwhile, IIT Madras has expanded its participation by offering a BS in Data Science and other specialized programs, catering to the growing demand for data-driven careers.
The IISC and IIT Madras have expanded their participation by offering a B.S in Data Science and B.S Research, catering to the growing demand.
| Participating Institute | Program Type |
|---|---|
| IISER Berhampur | BS-MS Dual Degree |
| IISER Bhopal | BS-MS Dual Degree |
| IISER Kolkata | BS-MS Dual Degree |
| IISER Mohali | BS-MS Dual Degree |
| IISER Pune | BS-MS Dual Degree |
| IISER Thiruvananthapuram | BS-MS Dual Degree |
| IISER Tirupati | BS-MS Dual Degree |
| IISc Bangalore | BS (Research) |
| IIT Madras | BS in Data Science and other programs |
IISER 2025 Admission Procedure
Admission procedure is strictly merit-based, based on the IAT 2025 score.
Counselling Procedure:
The counselling procedure is conducted where the shortlisted candidates in the merit list are allotted seats in different IISER colleges throughout the country.
- Preparation of Merit List: Based on IAT scores.
- Preference Filling: Candidates fill in preferred institutes.
- Seat Allotment: Seat allotment based on rank, preferences, and category.
- Document Verification: Verification at the allotted institute.
- Confirmation of Admission: Payment of admission fees confirms seat.
Several rounds of counselling can be conducted depending upon seat availability.
IISER 2025 – FAQs
Q1. What is IISER IAT 2025 and who organizes it?
IISER IAT 2025 is the admission test for BS-MS and BS programmes in the Indian Institutes of Science Education and Research (IISERs). It is organized by the IISER Admissions Committee, which functions under the Ministry of Education, Government of India.
Q2. What is the last date for submitting applications for IISER 2025?
The deadline for application form submission of IISER 2025 is April 15, 2025. The applicants need to register well in advance so that there will be no technical issues at the end moment.
Q3. Who can apply for IISER 2025?
The applicants must have passed or must be appearing for Class 12 with science stream in 2023, 2024, or 2025. General, EWS, and OBC-NCL categories must score a minimum of 60% marks, while SC, ST, and PwD categories must secure a minimum of 55% marks.
Q4. Are PCB students eligible to apply for IISER admission?
Yes, Biological (Biology, Chemistry, Physics) stream students of PCB are also eligible if they have completed at least three science main subjects. But since the IAT has a Maths section, preparation in basic math is necessary.
Q5. What is the application fee for IISER 2025?
The application fee is ₹2,000 for General, EWS, and OBC-NCL candidates and ₹1,000 for SC, ST, PwD, and Kashmiri Migrant candidates. The fee should be paid online while applying.
Q6. What is the pattern of IISER Aptitude Test 2025?
IAT 2025 has 60 multiple-choice questions—15 each from Physics, Chemistry, Mathematics, and Biology. The test is 3 hours long and is conducted in computer-based mode.
Q7. Is there negative marking in the IISER 2025 exam?
Yes, for every correct answer, candidates are awarded +4 marks, and for every wrong answer, 1 mark is deducted. Unattempted questions have no marks.
Q8. When will the IISER 2025 result be declared?
The outcome of IISER IAT 2025 is going to be announced in June 2025. Candidates can access their scores and ranks by entering the official website using their registered credentials.
Q9. What number of IISER institutions take part in IAT 2025?
Seven IISERs (Berhampur, Bhopal, Kolkata, Mohali, Pune, Tirupati, and Thiruvananthapuram), and IIT Madras and IISc Bangalore for certain science courses accept admissions through IAT 2025.
Q10. How many seats is the total intake for IISER 2025?
There are varying numbers of seats across institutes but overall around 150 to 250 seats per IISER. The total seat matrix will be released along with the official admission brochure.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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