IISER IAT 2026 Answer Key Released; Objection Window Opens on June 09

IISER IAT 2026 Answer Key has been released by the Indian Institutes of Science Education and Research (IISER) following the successful conduct of the IISER Aptitude Test (IAT) 2026 on June 07, 2026. Candidates who appeared for the entrance examination can now check the provisional answer key through the official admission portal.

The institute has also announced that the candidate response sheet and answer key challenge facility will be activated on June 09, 2026. Eligible candidates can submit objections against the provisional answer key until June 13, 2026.

IISER IAT 2026 Answer Key and Response Sheet Details

The provisional answer key allows candidates to compare their responses and estimate their likely scores before the declaration of results. Candidates should carefully review the answer key and response sheet once available to identify any discrepancies. The answer key has been released for the examination conducted from 9:00 AM to 12:00 Noon IST on June 07, 2026.

IISER IAT 2026 Important Dates and Schedule

IISER has announced the complete schedule related to the answer key, objection process, and document upload activities. Candidates can check the important dates below.

Candidates should complete all activities within the prescribed deadlines to avoid missing any admission-related requirements.

How to Check IISER IAT 2026 Answer Key?

Candidates can access the provisional answer key online through the official admission portal. Before logging in, candidates should keep their credentials ready.

1. Visit the IISER admission portal.
2. Click on the IISER IAT 2026 Answer Key link.
3. Log in using the required credentials.
4. View the provisional answer key displayed on the screen.
5. Download and save the answer key.
6. Compare responses to estimate the probable score.

IISER IAT 2026 Objection Window Opens June 09

Candidates who find discrepancies in the provisional answer key can challenge the answers during the objection period. The challenge facility will remain available from June 09, 2026, to June 13, 2026. All objections must be submitted within the specified timeline. Applicants are advised to provide supporting justification while raising objections. Challenges submitted after the deadline will not be considered.

IISER Admission 2026 Next Steps After Answer Key

Following the completion of the answer key challenge process, IISER will review the objections submitted by candidates and prepare the final answer key.

Candidates should also note the upcoming document upload window, which will remain open from June 13 to June 21, 2026. Any required information or supporting documents must be uploaded within this period as part of the admission process.

Applicants are advised to regularly monitor the IISER admission portal for updates regarding the final answer key, results, counselling schedule, and admission-related announcements.