The IISER Joint Admission Committee (JAC) has announced that the registration window for the IISER Aptitude Test (IAT) 2026 will close on April 13, 2026. Students aspiring to pursue research-oriented undergraduate programs at premier institutes like IISERs, IITs, IISc, IACS, and IIEST Shibpur must complete their applications through the official website iiseradmission.in before the deadline. This national-level entrance exam is highly relevant for science aspirants across India and globally, offering access to prestigious programs in science, data science, engineering, and interdisciplinary research fields.
IAT 2026 Important Dates
- Last Date to Apply: April 13, 2026
- Application Correction Window: April 16 to April 18, 2026
- Admit Card Release: May 24, 2026
- Exam Date: June 7, 2026
- Exam Timing: 9:00 AM to 12:00 PM
- Mode of Exam: Computer-Based Test (CBT)
Major Update for IAT 2026
In a significant development, IAT 2026 scores will also be accepted by top institutions such as:
- Indian Institutes of Technology (IITs)
- Indian Institute of Science (IISc)
- Indian Association for the Cultivation of Science (IACS)
- IIEST Shibpur
This expands the scope of opportunities for candidates beyond IISERs, making IAT 2026 even more competitive and valuable.
IAT 2026 Exam Pattern & Marking Scheme
The IAT 2026 exam will be conducted in CBT mode and consist of 60 multiple-choice questions equally divided among four subjects:
- Biology: 15 Questions
- Chemistry: 15 Questions
- Mathematics: 15 Questions
- Physics: 15 Questions
Total Duration: 3 Hours
Total Marks: 240
Marking Scheme:
- +4 marks for each correct answer
- -1 mark for each incorrect answer
- No negative marking for unanswered questions
This structure emphasizes both accuracy and conceptual clarity, making strategic preparation essential.
Courses Offered Through IAT 2026
Candidates qualifying IAT 2026 can apply for a wide range of programs, including:
- 5-Year BS-MS Dual Degree Programs at IISERs
- 4-Year BS and B.Tech Programs at IISER Bhopal and IISER Tirupati
- Specialized courses such as:
- Computational & Data Sciences (IISER Kolkata)
- Geology & Environmental Sciences (IISER Mohali)
These programs offer a research-driven curriculum, blending theoretical knowledge with practical exposure in cutting-edge scientific fields.
How to Apply for IAT 2026
Follow these steps to complete your application:
- Visit iiseradmission.in
- Click on “Apply for IAT 2026”
- Register using your basic details
- Log in with your credentials
- Fill out the application form and upload required documents
- Pay the application fee
- Submit the form and download the confirmation page
Quick Reference Summary
| Event | Details |
| Exam Name | IISER Aptitude Test (IAT) 2026 |
| Last Date to Apply | April 13, 2026 |
| Correction Window | April 16–18, 2026 |
| Admit Card Date | May 24, 2026 |
| Exam Date | June 7, 2026 |
| Mode | Computer-Based Test |
| Total Questions | 60 |
| Total Marks | 240 |
| Official Website | iiseradmission.in |
Why IAT 2026 is Important
The IISER Aptitude Test is one of India’s most prestigious science entrance exams, opening doors to top-tier research institutions. With the inclusion of IITs and IISc in accepting IAT scores, candidates now have broader academic pathways in science and technology.
Preparation Tips for IAT 2026
- Focus on NCERT fundamentals for Physics, Chemistry, Biology, and Mathematics
- Practice MCQs and previous year papers
- Improve time management with mock tests
- Strengthen conceptual clarity rather than rote learning
Frequently Asked Questions (FAQs)
| What is the last date to apply for IAT 2026? |
| The last date to apply is April 13, 2026. |
| When will the IAT 2026 exam be conducted? |
| The exam will be held on June 7, 2026. |
| What is the mode of the IAT 2026 exam? |
| It will be conducted in computer-based (CBT) mode. |
| How many questions are asked in IAT 2026? |
| A total of 60 questions will be asked. |
| Is there negative marking in IAT 2026? |
| Yes, 1 mark is deducted for each wrong answer. |
| What is the total duration of the exam? |
| The exam duration is 3 hours. |
| Which institutes accept IAT 2026 scores? |
| IISERs, IITs, IISc, IACS, and IIEST Shibpur. |
| Where can I apply for IAT 2026? |
| You can apply at iiseradmission.in. |
With the IAT 2026 registration deadline approaching on April 13, candidates must act quickly to secure their chance at top science institutes. Ensure accurate form submission and prepare strategically for the June 7, 2026 exam. For official updates and application access, visit iiseradmission.in and bookmark this page for the latest notifications and guidance, for more details and register CLICK HERE
