IISER IAT Answer Key 2026: The Indian Institutes of Science Education and Research (IISER) has published the provisional answer key for the IISER Aptitude Test (IAT) 2026 on the official admission portal. Applicants who appeared for the entrance examination can now download the answer key and estimate their probable scores before the final results are declared. The IISER IAT 2026 was conducted on June 7 in a single shift from 9 AM to 12 Noon. The answer key was released on the same day shortly after the examination concluded allowing students to compare their marked responses immediately. The IAT 2026 is held for admission to various undergraduate programmes offered by IISER campuses including Bachelor of Science Master of Science (BS-MS) Dual Degree programmes Bachelor of Science (BS) programmes and Bachelor of Technology (BTech) programmes. A total of 2343 seats are available across seven IISER campuses for the 2026 academic session and over 1.86 lakh candidates appeared for the exam at 736 centres nationwide. This post contains details regarding the release of the provisional answer key for the IISER Aptitude Test (IAT) 2026 and the details related to it.
IISER IAT 2026 Overview
| Field | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2026 |
| Conducting Body | Indian Institutes of Science Education and Research (IISER) |
| Article Category | NOTIFICATION |
| Exam Date | June 7, 2026 |
| Provisional Answer Key Release Date | June 7, 2026 |
| Response Sheet & Objection Window | June 9 to June 13, 2026 |
| Official Website | iiseradmission.in |
IISER IAT Result 2026 Expected Date
The IISER IAT 2026 result is expected to be declared in the fourth week of June 2026 on the official admission portal. Once all objections to the provisional answer key are reviewed by subject experts the final answer key will be prepared and published. Based on the final answer key, the results and scorecards will be generated and announced. Applicants who qualify in the entrance test will be shortlisted for counselling and seat allocation across various IISER campuses.
How to Download IISER IAT Provisional Answer Key 2026
- Visit the official IISER admission website at iiseradmission.in.
- Click on the “IAT 2026 Provisional Answer Key” link available on the homepage.
- Log in using the required credentials (Application Number and Date of Birth/Password) if prompted.
- The provisional answer key PDF will appear on the screen with subject-wise questions and answers.
- Check the answers carefully and compare them with your recorded responses from the exam.
- Download and save the answer key PDF for future reference and score calculation.
IISER IAT 2026 Exam Structure
| Section | Number of Questions | Marks per Question | Total Marks |
|---|---|---|---|
| Biology | 15 | 4 | 60 |
| Chemistry | 15 | 4 | 60 |
| Mathematics | 15 | 4 | 60 |
| Physics | 15 | 4 | 60 |
| Total | 60 | – | 240 |
Response Sheet and Objection Window Details
The admission authority will release the applicants response sheets on June 9 2026. Along with the response sheets the objection submission facility will also be activated on the same day. Applicants can compare their recorded responses with the provisional answer key and raise objections if they find any incorrect information in the answer key. The objection window will remain open until June 13 2026. All challenges submitted by applicants will be reviewed by subject experts before the final answer key is prepared.
IISER IAT Expected Cutoff Marks 2026
| Category | Safe Marks Range (Out of 240) |
|---|---|
| General | 150-180+ |
| EWS | 135-165 |
| OBC-NCL | 130-160 |
| SC | 90-120 |
| ST | 75-110 |
Important Links
| Description | Link |
|---|---|
| Answer Key (English) | Click Here |
| Answer Key (Hindi) | Click Here |
| Official Website | iiseradmission.in |
Frequently Asked Questions
Ans. The IISER IAT 2026 provisional answer key was released on June 7, 2026 on the official IISER admission website after the examination concluded.
Ans. The objection submission window opens on June 9 2026 along with the release of candidate response sheets and closes on June 13 2026.
Ans. The exam consists of 60 multiple-choice questions with 4 marks for each correct answer. There is no negative marking for incorrect responses.
