The Indian Institutes of Science Education and Research (IISERs) have officially released the IISER Aptitude Test 2026 schedule, confirming both the registration dates and the examination timeline. IAT 2026 is the only national-level entrance examination for admission to IISERs’ prestigious undergraduate science programs, including the 5-Year BS-MS, 4-Year B.Tech., and BS degree courses.
The online application process for IAT 2026 will begin on March 5, 2026, giving science aspirants across India a crucial opportunity to secure admission into research-oriented institutes known for academic excellence and interdisciplinary learning. The computer-based test will be conducted on June 7, 2026, and admissions will be offered purely on the basis of candidates’ performance in this examination.
With 2338 tentative seats available across nine IISERs, IAT 2026 remains one of the most competitive and sought-after entrance exams for students aiming to build a strong foundation in science and research.
Overview – IISER Aptitude Test (IAT) 2026
| Particulars | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2026 |
| Conducting Body | IISER Admission Committee |
| Programs Offered | BS-MS, B.Tech., BS |
| Admission Mode | Through IAT 2026 only |
| Total Seats | 2338 (Tentative) |
| Exam Mode | Computer-Based Test (CBT) |
| Official Website | iiseradmission.in |
Important Dates – IAT 2026
| Event | Date |
|---|---|
| Application Portal Opens | March 5, 2026 |
| Last Date to Apply | April 13, 2026 |
| Application Correction Window | April 13 – April 15, 2026 |
| Hall Ticket Release | May 24, 2026 |
| IAT 2026 Exam Date | June 7, 2026 (9:00 AM – 12:00 Noon) |
IISER Seat Matrix 2026
BS-MS Programme
| IISER | Seats |
|---|---|
| IISER Berhampur | 300 |
| IISER Bhopal | 300 |
| IISER Kolkata | 280 |
| IISER Kolkata (Computational & Data Science) | 30 |
| IISER Mohali | 270 |
| IISER Pune | 288 |
| IISER Tirupati | 250 |
| IISER Thiruvananthapuram | 320 |
B.Tech. / BS Programme
| Institute & Programme | Seats |
|---|---|
| IISER Bhopal – B.Tech. Engineering Science | 115 |
| IISER Bhopal – B.Tech. Data Science & Engineering | 80 |
| IISER Bhopal – BS Economic Sciences | 55 |
| IISER Tirupati – BS Economic & Statistical Sciences | 50 |
Total Seats: 2338
Eligibility Criteria – IISER Aptitude Test 2026
Nationality
Indian Nationals
OCI / PIO
Foreign Nationals
Educational Qualification
Passed Class XII in 2024 or 2025, or
Appearing in Class XII in 2026
Board must be COBSE-recognized
Subjects Requirement
At least three subjects among:
Physics, Chemistry, Mathematics, Biology
Mathematics Mandatory For
BS-MS (Computational & Data Sciences – IISER Kolkata)
All B.Tech. programmes (IISER Bhopal)
BS Economics programmes (IISER Bhopal & Tirupati)
Minimum Marks
General / EWS / OBC-NCL: 60%
SC / ST / PwD: 55%
Application Fee – IAT 2026
| Category | Fee |
|---|---|
| General / EWS / OBC / OBC-NCL | ₹2000 |
| SC / ST / PwD / KM / Hindu Family (Non-Migrant) | ₹1000 |
| Foreign Nationals | ₹12,000 |
Fee is non-refundable.
How to Apply for IISER Aptitude Test 2026
Click on IAT 2026 Application Link
Register using email ID and mobile number
Fill personal and academic details carefully
Upload photograph, signature, and certificates
Pay the application fee online
Submit the form and download confirmation page
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Important Links
| Description | Link |
|---|---|
| Apply Online | Click Here |
| IAT 2026 Notification | Click Here |
| IISER Admission Website | Click Here |
FAQs – IISER Aptitude Test 2026
(Google AI-Friendly)
Q1. What is IISER Aptitude Test (IAT) 2026?
IAT 2026 is the national-level entrance exam for admission to IISER undergraduate programmes.
Q2. When does IAT 2026 registration start?
Online registration begins on March 5, 2026.
Q3. What is the exam date of IISER Aptitude Test 2026?
IAT 2026 will be conducted on June 7, 2026.
Q4. How many seats are available through IAT 2026?
A total of 2338 tentative seats are available.
Q5. Is Mathematics compulsory for all IISER courses?
No, Mathematics is compulsory only for selected programmes.
Q6. What is the mode of IAT 2026 exam?
The exam will be conducted in computer-based mode (CBT).
Q7. What is the official website for IAT 2026?
The official website is iiseradmission.in.
Disclaimer
The information provided above is for reference purposes only. Candidates are advised to check the official IISER admission website for the latest and authentic updates.
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