IAT 2026 Provisional Answer Key: IISER Berhampur will conduct the IISER Aptitude Test (IAT) 2026 on June 7, 2026, in the morning shift from 9:00 AM to 12:00 PM at multiple examination centres across the country. Candidates seeking admission to the IAT 2026 participating institutes will have their critical thinking, analytical ability, and subject knowledge assessed in Mathematics, Physics, Chemistry, and Biology.

After the successful conduct of the examination, the officials will release the IAT 2026 provisional answer key on the official website. Test takers will then be able to download the IISER 2026 answer key PDF to check the correct answers provided by the authorities.

Candidates who are not satisfied with the released answer key will also be given an opportunity to raise objections against the IISER 2026 provisional answer key within the timeline specified by the officials on the website.

Read this SciAstra article to get complete insights into when the IAT 2026 provisional answer key will be released, the direct link to download the answer key, steps to download it, details mentioned in the answer key, how to calculate scores, and the provisional answer key challenge window dates.

What is IAT 2026 Provisional Answer Key?

The IAT 2026 Provisional Answer Key is a preliminary document which is released by the examination authorities after the successful conduct of the IAT 2026. It will mention all the correct responses to the questions asked during the examination. Candidates can use the provisional answer key to compare their responses and estimate their probable scores before the declaration of the result.

If candidates find any discrepancy or believe that a particular answer is incorrect, they can submit objections by providing valid supporting evidence within the stipulated deadline. The IAT 2026 provisional answer key will be made available in PDF format on the official website.

For candidates’ ease, they will be able to download the IAT 2026 provisional answer key PDF from here:

Answer Key

PDF

IAT 2026 Provisional Answer Key PDF

Available Soon

IAT 2026 Provisional Answer Key vs Final Answer Key

The provisional answer key and final answer key are two different answer keys that are released for the candidates taking the examination to determine how many marks they have scored.

Check out the difference between the two from here:

Details

IAT 2026 Provisional Answer Key

IAT 2026 Final Answer Key

Release Stage

Released first after the examination

Released after reviewing all objections

Purpose

To provide candidates with preliminary answers and allow for challenges

To provide the final and revised answers for evaluation

Challenge Facility

Candidates can raise objections against the answers

No objections are accepted after release

Possibility of Changes

Answers may be modified based on valid objections

Answers are considered final and binding

Result Preparation

Not used directly for result preparation

Used for calculating the final IAT 2026 scores and results

Transparency

Helps candidates verify and challenge answers

Confirms the final answers accepted by the authorities

IAT 2026 Provisional Answer Key Release Date

The exam officials will release the IISER 2026 Provisional Answer Key on June 7, 2026, after the conclusion of the examination. Based on previous years' trends, the authorities have tended to release the answer key late at night, often around midnight.

Test takers who are eagerly awaiting the provisional answer key are advised to regularly visit the official website after the examination to stay updated on its release. The table below highlights the answer key release dates from previous years:

Year

Exam Date

Answer Key

2024

June 9, 2024

June 9, 2025 (Around 5 PM)

2025

May 25, 2025

May 26, 2025

2026

June 7, 2026

June 7, 2026 (Yet to be Released)

IAT 2026 Important Dates

Candidates can check out the important upcoming dates for important events after the conduct of the examination from here:


Event Name

Dates

IAT 2026 Provisional 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

How to Download IISER 2026 Provisional Answer Key?

Candidates who have appeared for the exam will be able to download the IAT 2026 answer key from the official IISER admissions website once it is released by the authorities. The answer key will be made available in PDF format and can be accessed without any difficulty by following the steps mentioned below.

Steps to Download IISER 2026 Provisional Answer Key

  1. Visit the official IISER Admissions 2026 website.

  2. On the homepage, locate and click on the "IAT 2026 Provisional Answer Key" link- will be provided soon.

  3. The IISER 2026 provisional answer key PDF will open on the screen.

  4. Carefully check the answers provided for all the questions.

  5. Download the PDF and save it for future reference.

  6. Compare your marked responses with the official answers to estimate your probable score in the examination.

Details Mentioned in the IISER 2026 Provisional Answer Key

After downloading the answer key, candidates should verify the following details:

  • Examination name (IISER Aptitude Test 2026)

  • Question paper set/code (if applicable)

  • Question numbers

  • Correct answer options for each question

  • Subject-wise answers for Physics, Chemistry, Mathematics, and Biology

  • Instructions regarding the objection/challenge process

  • Important dates related to answer key challenges

IAT 2026 Student Response Sheet

The IISER 2026 Student Response Sheet contains the answers marked by candidates on the examination day at their respective exam centres. The examination authorities will upload the IAT 2026 Response Sheet on June 9, 2026.

Since the IAT 2026 Provisional Answer Key will be released on June 7, 2026, candidates will be able to use both the provisional answer key and the IISER 2026 Student Response Sheet to calculate and estimate their probable scores in the examination.

In order to download the IAT 2026 response sheet, test takers need to visit the official website and then log in to their registered accounts to view the response sheet. Only the candidates who have appeared for the examination will be able to download the IAT 2026 student response sheet PDF.

Response Sheet

Download Link

IISER 2026 Student Response Sheet

Link Available Soon

How to Calculate Score Based on IISER Answer Key 2026

Candidates will be able to evaluate the marks scored by them in the examinations based on the IAT exam pattern 2025 and marking scheme. While checking the marks scored by them, candidates can follow the steps below to know the marks achieved by them for correct answers and deductions of marks for incorrect answers.

Criteria

Marking Scheme / Calculation Method

Correct Answer

+4 marks will be awarded for each correct answer.

Incorrect Answer

-1 mark will be deducted for each incorrect answer.

Unanswered Question

0 marks will be awarded for unanswered questions.

Step 1

Count the total number of correct answers.

Step 2

Multiply the number of correct answers by 4.

Step 3

Count the total number of incorrect answers.

Step 4

Multiply the number of incorrect answers by 1.

Step 5

Subtract the total negative marks from the total positive marks.

Final Score Formula

(Number of Correct Answers × 4) − (Number of Incorrect Answers × 1)

IAT Previous Year Answer Keys

Candidates can check out the IISER previous year answer keys from here:

Year

Answer Key PDF

IAT 2025 Provisional Answer Key

Download Now

IAT 2024 Provisional Answer Key

Download Now

IAT 2023 Provisional Answer Key

Download Now

Conclusion

Provisional Answer Key will play a crucial role in helping candidates to evaluate their performance before the declaration of the IAT 2026 results. By comparing their responses with the official answers, test takers can estimate their probable scores and gain clarity about their admission prospects to the research institutes.

Candidates are advised to carefully review the provisional answer key, download their response sheet, and raise objections within the prescribed timeline if they identify any discrepancies. Staying updated with the official announcements regarding the answer key, response sheet, and final answer key will ensure that candidates do not miss any important developments in the IISER admission process 2026.