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The registration for the IISER Aptitude Test (IAT) 2026 has officially begun. Aspiring candidates who wish to secure a place in the prestigious Indian Institutes of Science Education and Research (IISER) are encouraged to apply promptly.

IISER Degree Programs

• Five-year BS-MS dual degree program for science students
• Five-year BS-MS dual degree program in Computational and Data Science (IISER Kolkata)
• Four-year B.Tech. (IISER Bhopal), BS in Economic Sciences (IISER Bhopal) and BS in Economic and Statistical Sciences (IISER Tirupati) for science students
• Classroom learning is integrated with research, providing ample scope for interdisciplinary activities
• Curriculum with a focus on both breadth and depth in the natural sciences, computational and data sciences, engineering, economic sciences, economics and statistical sciences
• Opportunity to pursue impactful research
• Fully residential campuses with well-equipped hostels
• Access to on-campus medical facilities, along with sports and other recreational facilities

Eligibility criteria

Applicants must be Indian nationals, OCI/PIO/Foreign Nationals to apply for IAT 2026.

• Candidates must have passed the Class XII (or equivalent) examination either in 2024 or 2025 or be appearing in 2026 from any board recognized by the Council of Boards of School Education (COBSE) in India. Foreign Nationals need to upload an equivalence certificate issued by the Association of Indian Universities unless they have passed the Class XII or equivalent level examination in 2024 or 2025 or are appearing in 2026 with a science stream from any board recognized by the Council of Boards of School Education (COBSE) in India. The equivalence certificate must be uploaded while submitting the IAT 2026 Application Form under “Please upload a copy of the document supporting your claim of Foreign National (You’ll need to produce the original when necessary)”.
• Candidates must have taken at least three subjects among Biology, Chemistry, Mathematics and Physics during their Class XII (or equivalent) examination.
• For admissions to the following programs, candidates must have Mathematics during their Class XII (or equivalent): 5-year BS-MS in Computational and Data Sciences program at IISER Kolkata, 4-year B. Tech. program at IISER Bhopal, a 4-year BS in Economic Sciences program at IISER Bhopal and 4-year BS in Economic and Statistical Sciences program at IISER Tirupati.
• Candidates belonging to SC/ST/PwD are required to score a minimum of 55% marks in aggregate or equivalent grade in their Class XII (or equivalent) examination. Candidates belonging to other categories are required to score a minimum of 60% marks in aggregate or equivalent grade in their Class XII (or equivalent) examination. Note that, the percentage needs to be calculated using aggregate marks, that is, considering ALL the subjects taken in Class XII (or equivalent) level.

Key Dates:  

Application Fees:  

Candidates must pay a registration fee, which varies based on category. It’s essential to check the official website for details on fee concessions or exemptions.

• Rs. 2,000/- for candidates applying under General, EWS, OBC, and OBC-NCL categories.
• Rs. 1,000/- for candidates applying under persons with disabilities (PwD), persons registered as Kashmiri Migrants/Kashmiri Pandits/Kashmiri Hindu Families (Non-Migrant) and SC/ST category.
• Rs. 12,000/- for candidates applying under the Foreign National category.
• The application fee is non-refundable.

Seat Acceptance Fee (SAF)

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

• Rs. 35,000/- (Rs. 25,000/- + Rs. 10,000/- (Non-refundable administrative fee)) for General/EWS/OBC/OBC-NCL/PwD/KM/Kashmiri Pandit/Kashmiri Hindu Families (Non-Migrants) categories.
• Rs. 17,500/- (Rs. 12,500/- + Rs. 5000/- (Non-refundable administrative fee)) for SC/ST categories.
• Failure to deposit the SAF within the stipulated time will result in the cancellation of the offer. Furthermore, the candidate will not be considered in any subsequent rounds of seat allotment during admission 2026.
• Once the candidate registers in the allotted IISER, SAF will be adjusted against the first semester fee. Please note that the overall fee structure at various IISERs is different. For more details, please visit the webpage of the respective IISER.
• For more details about the withdrawal process/refund policy, please click here.

IISER Previous Years’ Question Papers:  

Important Instructions:

Applicants are advised to fill out the online application form carefully, ensuring all details are accurate to avoid disqualification. Additionally, supporting documents need to be uploaded as per the guidelines.

For updates and additional information, candidates should regularly visit the official IISER website. Don’t miss this opportunity to embark on a rewarding academic journey at IISER!