IISER IAT 2026 Final Answer Key Released at iiseradmission.in; Download PDF, Result Soon

The Indian Institutes of Science Education and Research (IISER) have made the IISER Aptitude Test (IAT) 2026 Final Answer Key available on their official website at iiseradmission.in.

The Indian Institutes of Science Education and Research (IISER) have made the IISER Aptitude Test (IAT) 2026 Final Answer Key available on their official website at iiseradmission.in. Now, candidates can download the final answer key in PDF format directly from the admission portal. This final key replaces the earlier released provisional answer key. The IAT 2026 was held on June 7, 2026, in a computer-based format. It had 60 questions, split equally among biology, chemistry, mathematics, and physics, with 15 questions in each subject. From June 9 to June 13, 2026, candidates had the chance to raise objections to the answer key. The IISER Joint Admissions Committee reviewed all these objections, and any corrections accepted have now been included in the final answer key. This final answer key will be used to prepare the results and calculate scores. Candidates can compare their responses with the official answers to estimate their scores. The IAT 2026 result is expected to be announced soon. The released file is named "English_Key_IAT 2026_final.pdf" and contains the official answers for all the questions. The PDF link is also available on the homepage and the Announcements section of the admission portal.

IISER IAT 2026 Important Dates

Objection Window and Fee Refund Policy

Candidates had to pay a non-refundable fee for each objection during the challenge period. However, if the objection is accepted, the fee will be refunded. If not, the fee will not be returned, as per the official policy. All changes accepted by the review committee have been included in the final answer key. Candidates can compare the provisional and final keys to see which questions were modified, re-keyed, or removed. These changes may affect their final scores.

What Happens After the IAT 2026 Result?

Once the IAT 2026 result is announced, the online counseling and seat allocation process will start. Qualified candidates need to register on iiseradmission.in and fill in their preferred program and institute choices. Final seat allocation will depend on the candidate's rank, their choices, and category reservations.

The seven IISERs participating in the centralized admission process are:

1. IISER Berhampur
2. IISER Bhopal
3. IISER Kolkata
4. IISER Mohali
5. IISER Pune
6. IISER Thiruvananthapuram
7. IISER Tirupati

All these institutes offer the five-year BS-MS Dual Degree Program.

The Seat Acceptance Fee (SAF) is:

1. ₹25,000 for General, OBC, and EWS candidates.
2. ₹12,500 for SC, ST, and PwD candidates.

This fee will be adjusted against the first-semester tuition fee after admission.

How to Download the IISER IAT 2026 Final Answer Key?

1. Go to the official website at iiseradmission.in.
2. Click on the "IAT 2026 Final Answer Key" link.
3. The official PDF will open in a new tab.
4. Download and save the answer key.
5. Compare the official answers with your own responses.

How to Calculate Scores Using the Final Answer Key?

First, log in to the candidate portal and download your IAT 2026 response sheet. Compare each of your answers with the final answer key. Keep track of the correct and incorrect answers. Apply the official IAT 2026 marking scheme to calculate your raw score. Remember, there is no negative marking for unattempted questions. You can use previous years' marks versus rank trends to estimate your expected rank. However, the actual official rank will only be known after the result is declared.

IAT 2026 Marking Scheme

Action Plan for Candidates

1. Download the IISER IAT 2026 final answer key from iiseradmission.in.
2. Get your IAT 2026 response sheet from the candidate portal.
3. Compare your answers with the final key to count correct and wrong responses.
4. Use the +4 and -1 marking system to calculate your expected score.
5. Keep your class 12 certificates and category documents ready for counseling.