IISER Answer Key 2026 (OUT): Answer Key Download Link & Response Sheet Details

The authority has uploaded the IISER answer key pdf online. Candidates can download the IAT answer key 2026 through the online application portal. The answer key is available along with the candidate's digital response. The process to download the IISER 2026 answer key is mentioned below.

• Go to the IISER official website, iiseradmission.in/

• Click on the ‘IISER answer key” link.

• Enter application number (roll number) and password.

• The answer key of IISER was displayed on the screen.

• Take a print out of the answer key and save it for future reference.

Direct Link for IISER 2026 Answer Key

• IISER provisional answer key in Hindi
• IISER provisional answer key in English

The authority activated the IISER answer key objection window on June 9, 2026. The link to challenge the answer key is available on the website iiseradmission.in. Candidates have to login through online application portal of IAT and submit their challenge (if applicable). This is a chargeable process, and candidates have to pay for each object. They have to pay INR 100 per objection. The process to challenge the IISER answer key is mentioned below.

• Go to IISER 2026 admission website.
• Click on IAT answer key objection link
• Now click on the 'Candidates response and objection portal' link
• Click on the login link.
• Enter the user id and password.
• Click on Objection form.
• The form will open. Now students have to click on fill the form link.
• Fill all sections and submit it.
• After submission, students need to pay the objection fees.

Candidates have to calculate their estimated scores based on the following method:

• For each correct answer, add four marks

• For each wrong answer, deduct one mark

• No marks will be awarded for unattempted questions

The authority released the IISER response sheet 2026 on June 9. Candidates can download the IAT response sheet through the login portal. The response sheet is the digital copy of candidates' responses. They can use the response sheet to cross check their using the IISER answer key 2026. The process to download the IAT response sheet is mentioned below.

• Go to the IISER 2026 website
• Click on the IAT response sheet link
• Enter the user id and password. 
• The response sheet will display on the screen.

Candidates can check IISER marks vs rank to know their rank based on marks obtained in the exam. The higher the marks, the higher the rank. Students must try to score 150+ marks to secure the top rank in IISER. Here we have mentioned the expected IISER marks vs rank.

Also Read: IISER 2026 Marks vs Rank 

Candidates can find the link to the IISER previous year answer key pdf here. The answer key is available with the IISER question paper. Students solving the previous year's questions can use the answer key to cross-check their responses and focus on weaker topics.

Download IAT 2025 Final Question Paper and Answer Key Here: Download Links

• English: Download Now
• Hindi: Download Now

Download IAT 2025 Question Paper and  Provisional Answer Key Here: 

• English: Download Now
• Hindi: Download Now

Also Read: IISER 2026 Question Paper Analysis 

IISER cutoff 2026 will be released online. The cutoff is the minimum rank required for admission to the participating IISER. Students whose rank in IISER is within the closing cutoff will be considered for admission. IISER cutoff 2026 will vary for each category. The authority will consider various factors, like exam difficulty level, number of students qualified in the test, and total number of seats available, to prepare the cutoff rank.

Also Read: IISER Counselling 2026