The Indian Institutes of Science Education and Research (IISERs) have officially announced the IISER Aptitude Test (IAT) 2026, the mandatory entrance exam for admission to undergraduate programmes at all IISER campuses for the academic year 2026–27. The IAT 2026 registration will start on March 5, 2026, and the entrance test will be conducted on June 7, 2026 (Sunday). Students interested in pursuing careers in basic sciences, research, and interdisciplinary studies must apply through the official website iiseradmission.in.
IISERs are premier autonomous institutions established by the Government of India to promote high-quality education and research in Biological, Chemical, Mathematical, Physical, and Earth Sciences. Admission through IAT offers students an early opportunity to join a research-oriented academic environment across seven IISER campuses.
IISER Campuses Participating in IAT 2026
Admission through IAT 2026 will be available at:
- IISER Berhampur
- IISER Bhopal
- IISER Kolkata
- IISER Mohali
- IISER Pune
- IISER Thiruvananthapuram
- IISER Tirupati
These institutes provide BS-MS dual degree, BS, BTech, and interdisciplinary science programmes designed for students aiming for research, innovation, and higher studies.
Important Dates for IAT 2026
| Event | Date |
| Application Start | 5 March 2026 |
| Last Date to Apply | 13 April 2026 |
| Application Correction | 16–18 April 2026 |
| Hall Ticket Release | 24 May 2026 |
| IAT 2026 Exam Date | 7 June 2026 |
| Exam Time | 9:00 AM – 12:00 PM |
| Official Website | iiseradmission.in |
Eligibility Criteria for IAT 2026
Candidates must satisfy the following conditions:
- Passed Class 12 / equivalent / 3-year diploma in science stream in 2024, 2025, or 2026
- Minimum 60% marks (55% for SC/ST/PwD)
- Must have studied at least three subjects among Physics, Chemistry, Mathematics, Biology
- Mathematics is compulsory for certain programmes such as:
- BS-MS Computational & Data Sciences (IISER Kolkata)
- BTech / BS Economic Sciences (IISER Bhopal)
- BS Economic & Statistical Sciences (IISER Tirupati)
Reservation policy follows Government of India rules:
- SC – 15%
- ST – 7.5%
- OBC-NCL – 27%
- PwD – 5%
- EWS – up to 10%
- Additional seats for Kashmiri migrants (as per rules)
How to Apply for IAT 2026
Follow these steps to complete the application:
- Visit https://www.iiseradmission.in
- Click on Apply for IAT-2026
- Register to generate User ID & Password
- Fill the application form carefully
- Upload required documents
- Pay the application fee online
- Submit and save the confirmation page
Candidates should ensure all details are correct because some fields cannot be changed after submission.
Exam Pattern of IAT 2026
- Mode: Computer-based / Online test (as per official guidelines)
- Duration: 3 hours
- Subjects covered:
- Physics
- Chemistry
- Mathematics
- Biology
- Questions will test conceptual understanding and analytical ability.
Why Choose IISER Through IAT
- Early exposure to scientific research
- Flexible interdisciplinary curriculum
- Opportunities for MS / PhD / research careers
- Strong foundation for R&D, academia, and deep-tech careers
- Government-funded premier institutes
Helpdesk for IAT 2026
- Phone: +91 7205457461 (2 PM – 5 PM, working days)
- Email: askjac2026@iiserbpr.ac.in
Frequently Asked Questions (FAQs)
| When will IAT 2026 registration start? |
| Registration starts on March 5, 2026. |
| What is the last date to apply for IAT 2026? |
| April 13, 2026. |
| When will the IAT 2026 exam be held? |
| June 7, 2026, from 9 AM to 12 PM. |
| Which website should I use to apply? |
| iiseradmission.in. |
| Who can apply for IAT 2026? |
| Students who passed Class 12 in 2024, 2025, or 2026 with science subjects. |
| Is Mathematics compulsory for all courses? |
| No, but it is required for some specific programmes. |
| How many IISER campuses participate? |
| Seven IISER institutes. |
| Is reservation available in IISER admission? |
| Yes, as per Government of India rules. |
The IAT 2026 registration announcement marks the start of the admission process for one of India’s most prestigious science education systems. Students aiming for careers in research, innovation, and advanced science studies should apply between March 5 and April 13, 2026, and prepare for the exam on June 7, 2026. For official updates, always visit iiseradmission.in and bookmark this page for future notifications, for more details and apply CLICK HERE
