IISER IAT 2026 Registration Begins – Check Important Dates, Eligibility & Exam Details

The IISER IAT 2026 registration process has officially begun today, March 5. The online application window will remain open until April 13, 2026. Candidates seeking admission to undergraduate science programmes at Indian Institutes of Science Education and Research (IISERs) must apply through the official portal within the stipulated timeline.

IISER IAT 2026 registration begins today - March 5

Admission to undergraduate programmes for the 2026-27 academic session across all seven campuses of the Indian Institutes of Science Education and Research will be based solely on IAT 2026 scores, and not on JEE scores, as clarified by the institute.

The aptitude test, officially known as the IISER Aptitude Test (IAT), will be conducted on June 7, 2026 (Sunday) from 9:00 AM to 12:00 Noon in computer-based mode.

IISER IAT 2026 Registration Begins - Important Dates:

Candidates are advised to complete registration well before the deadline to avoid last-minute technical issues.

IISER IAT 2026 Eligibility Criteria

To apply for IAT 2026, candidates must fulfill the following eligibility requirements:

Educational Qualification

Candidates must have passed Class 12 (or equivalent) examination in 2025 or 2026.

Science stream students with subjects including Physics, Chemistry, Mathematics and/or Biology are eligible.

Minimum Marks Requirement

Candidates should have secured at least 60% aggregate marks (55% for SC/ST/PwD candidates) or equivalent grade in Class 12.

Age Criteria

There is generally no specific upper age limit; however, candidates must meet the year-of-passing criteria.

Applicants are advised to check detailed eligibility conditions in the official notification before applying.

Admission Process for 2026-27

Admission to BS-MS dual degree programmes and other undergraduate science programmes across all seven IISER campuses will be conducted strictly through IAT 2026 scores.

The participating IISER campuses include:

• IISER Pune
• IISER Kolkata
• IISER Mohali
• IISER Bhopal
• IISER Thiruvananthapuram
• IISER Tirupati
• IISER Berhampur

The institute has clarified that JEE scores will not be considered for admission in 2026-27. Selection will be purely merit-based, depending on IAT performance and seat availability.

Exam Pattern of IISER IAT 2026

The IAT 2026 will be conducted in computer-based mode.

Key Highlights:

• Duration: 3 hours (180 minutes)
• Mode: Online (CBT)
• Subjects: Physics, Chemistry, Mathematics, Biology
• Type of Questions: Multiple Choice Questions (MCQs)
• Total Questions: Expected 60 (15 from each subject)

The detailed marking scheme will be available in the official information brochure.

How to Apply for IISER IAT 2026

Candidates can follow these steps:

1. Visit the official IISER admissions portal.

2. Click on "IAT 2026 Registration" link.

3. Register using a valid email ID and mobile number.

4. Fill in personal, academic, and contact details.

5. Upload required documents (photograph, signature, certificates).

6. Pay the application fee online.

7. Submit and download the confirmation page.

Applicants must ensure that all details entered are correct, as incorrect information may lead to rejection of the application.

Why IAT 2026 is Important

The IISERs are premier institutes dedicated to high-quality science education and research in India. The BS-MS dual degree programme integrates classroom learning with research exposure, offering students opportunities in scientific research, higher studies, and interdisciplinary careers.

With admissions now based exclusively on IAT scores, the competition is expected to be intense. Aspirants should focus on strengthening conceptual clarity in core science subjects.

Conclusion

The IISER IAT 2026 registration process has officially commenced and will remain open until April 13, 2026. The aptitude test is scheduled for June 7, 2026. Since admissions for the 2026-27 academic session will be based solely on IAT scores, candidates must prepare strategically and complete their applications well before the deadline to secure a chance at India's premier science institutions.