The IAT Answer Key 2027 will be released by the exam conducting body after the successful conduct of the examination. As the IAT 2027 Exam Date has not yet been announced and the examination is yet to be conducted, the official answer key is currently unavailable. Once released, candidates will be able to download the IAT provisional answer key 2027 from the official IISER admission portal to verify their responses and estimate their probable IAT score 2027 before the declaration of the result.
The IAT 2027 Answer Key is expected to be released in two phases, a provisional answer key followed by the final answer key after the objection process is completed, as per the previous admission cycle. Candidates who find discrepancies in the IAT provisional answer key will likely be given an opportunity to challenge the answers within the prescribed deadline by submitting valid supporting documents.
After reviewing all objections, IISER will publish the IAT final answer key 2027 , which will be used for preparing the IAT 2027 results. The answer key, along with the candidate response sheet, enables aspirants to calculate their expected scores using the official marking scheme and assess their chances of admission to IISERs and other participating institutes.
Check out the complete insight on the IAT answer key 2026, student response sheet, dates and other updates on this SciAstra exam page.
Latest Updates:
IAT Exam Date 2027
It is important for the applicants to know the IISER Exam Date 2027, like release of the exam notification, exam date, registration and other event timelines. Since the officials have yet to release the IAT 2027 exam schedule, here is the tentative timeline (based on the 2026 exam calendar) mentioned:
Event Name | Tentative Dates |
IAT 2027 Notification | First Week of February 2027 |
IISER 2027 Application Form Start Date | First Week of March 2027 |
IISER 2027 Application Form End Date | Second Week of April 2027 |
IAT 2027 Application Correction Window | Third Week of April 2027 |
IISER Aptitude Test 2027 | First Week of June 2027 |
IAT 2027 Provisional Answer Key | First Week of June 2027 (After the successful conduct of the exam) |
IAT 2027 Student Response Sheet | Second Week of June 2027 |
IAT 2027 Result Release Date | Fourth Week of June 2027 |
How to Download the IISER 2027 Answer Key
Test takers can download the IAT 2027 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 2027 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 Answer Key PDFs (Official) | |
IAT 2026 Answer Key PDF (English) | IAT 2026 Provisional Answer Key (English) |
IAT 2026 Answer Key PDF (Hindi) | IAT 2026 Provisional Answer Key (Hindi) |
IAT 2026 Question Paper Solution
The solution of the IAT 2026 paper is available below in the following YouTube video:
How to Calculate Score Based on IISER Answer Key 2027
Candidates will be able to evaluate the marks scored by them in the examinations based on the IAT exam pattern 2027 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 2027 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.
