IAT Answer Key 2026 (OUT): PDFs, Steps to Download, Response Sheet, Objection & Fees

The IISER 2026 provisional answer key was released on June 7, 2026, at iiseradmission.in. Test takers can check the correct answers marked by the exam officials and tally their IISER 2026 scores.

The exam officials will also release the IAT 2026 student response sheet on June 9, 2026 in order to check the responses made by them during the exam.

Candidates who are not satisfied with the answer given by the exam officials will be able to raise objections against the released IAT 2026 provisional answer key. The IAT 2026 Answer Key Objection Portal will remain open from June 9 to June 13, 2026 at iiseradmission.in.

Based on the corrections made in the provisional answer key, the IISER final answer key will be released in the fourth week of June 2026, tentatively.

Check out the complete insight on the IAT answer key 2026, student response sheet, dates and other updates on this SciAstra exam page.

Latest Update:

• IAT 2026 Answer Key & Paper Analysis Live Updates

• IAT 2026 Question Paper

• IAT 2026 Response Sheet

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IAT 2026 Exam Dates

Check out the important dates related to IAT 2026 below:

How to Download the IISER 2026 Answer Key

Test takers can download the IAT 2026 answer key PDF (Provisional and Final answer key) by visiting the official website. Check out the steps to download the answer key from here:

Step 1: Visit the official website- the link will be provided soon.

Step 2: Click on the “IISER 2026 Provisional/Final Answer” link mentioned on the homepage of the official website.

Step 3: Check out the correct answers marked by the exam officials in the answer key.

Step 4: Tally the marks obtained in the examination.

IAT 2026 Question Paper Solution

The solution of the IAT 2026 paper is available below in the following YouTube video:

IAT 2026 Question Paper Solution

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. The marking scheme of the IISER Entrance Exam 2026 is as follows:

• For every correct answer marked by the candidates, +4 marks will be given.

• For every wrong answer marked by the candidates, a -1 mark will be deducted.

• If the candidate has not answered any question, no marks will be awarded.

• Calculate the number of correct answers and then multiply by 4

• Calculate the number of incorrect answers.

• Subtract the sum of incorrect answers from the sum of correct answers.