Important Dates for IISER 2026
| Event | Expected Timeline |
|---|---|
| Application Portal Opens | Thursday, March 5, 2026 |
| Application Portal Closes | Monday, April 13, 2026, 11:55 PM IST |
| Corrections in Application Forms | Thursday, April 16, 2026, 11:00 AM IST – Saturday, April 18, 2026, 11:55 PM IST |
| Release of Hall Tickets | Sunday, May 24, 2026 |
| IISER Aptitude Test (IAT) 2026 | Sunday, June 7 2026 (9:00 AM to 12:00 Noon IST) |
| Answer Key Display | June 7, 2026 |
| Candidate Response form upload & Portal opens for filing Objections | June 9, 2026 |
| Portal closes for filing Objections | June 13, 2026 |
| Windows for Selective Information/Document Upload in Application Form | June 13, 2026 – June 21, 2026 |
| Last date for Selective Information / Document upload in Application Form | June 21, 2026 |
NOTE: Verify on iiseradmission.in; dates subject to official notification.
Important Notices
Date of IISER Aptitude Test (2026): Sunday, June 7, 2026 (9:00 AM to 12:00 Noon IST)