| Application Portal Opens | March 10, 2025 |
| Application Portal Closes | April 15, 2025 |
| Corrections in Application Forms | 10:00 AM, April 21, 2025 - 5:00 PM, April 22, 2025 |
| Release of Hall Tickets | May 15, 2025 |
| IISER Aptitude Test (IAT) 2025 | May 25, 2025 |
| Answer Key Display | May 25, 2025 (after the IAT 2025) |