IISER 2025 Answer Key: IAT Final Answer Key (June), How to Calculate Score, Response Sheet
Indian Institutes of Science Education and Research Entrance Exam 2025 ( IISER Entrance Exam )
IISER 2025 final answer key is anticipated to be released in the second week of June 2025 tentatively. The exam officials will publish the IAT 2025 final answer key based on the corrections make against the objections received by the test takers in the released provisional answer key. The IISER 2025 scorecard will be based on the final answer key released. Candidates can no longer raise objections against the final answer key.
IISER results 2025 will be released in the second week of June 2025, tentatively. The results will be based on the IAT final answer key 2025.
IISER 2025 students' response sheet was released on the official website on May 29, 2025. IAT 2025 Answer Key was released on the official website on May 25, 2025, for the candidates taking admissions to the BS-MS/ BS degree programmes.
Take a look at the details of the IISER answer key dates, download and challenge process and other related information. The IAT 2025 counselling will start in the third week of June 2025 to freeze the seats offered at various IISER institutes.
Latest Updates:
Based on the corrections made in the provisional answer key, exam officials will release the IAT 2025 Final answer key in the second week of June 2025. The scorecards of IISER 2025 will be made based on the final answer key and test takers will be able to download the scorecard PDF by logging in to their registered accounts.
IISER 2025 exam was held on May 25, 2025 for the candidates taking admissions to the BS-MS, BS, B.Tech degree courses offered at IISERs, IISc Bangalore, and IIT Madras. After the successful of the examination, the exam officials released the IISER 2025 Student Response Sheet on May 29, 2025.
The IISER Response Sheet 2025 is a specimen that mentions the answers marked by the candidates of the subject for which they have taken the IISER 2025.
IISER is expected to release the IAT 2024 Exam Answer Key at its official website on May 25, 2025. Candidates who have appeared in IISER Aptitude Test will be able to check their answers marked for the questions asked and can evaluate their final marks scored. Candidates must note that these are not the final answer key that the examination conducting body, IISER released. These are the provisional answer key. Applied candidates will get the opportunity to raise objections if they found any mistakes in the provided answer key.
Candidates will be able to download the final answer key of IISER 2025 pdf from the official website only in online mode. The authorities released the first provisional answer key of IISER pdf and candidates will be able to check their answers and calculate the probable scores secured in the IISER 2025 admission test. To download the IISER answer key 2025, candidates must follow the below steps:
Go to the IISER official website - https://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
The online window to raise representations about questions/answers in IAT 2025 started on May 29, 2025 from 5 pm onwards. The last date to raise objections will be June 01, 2025 till 5 pm. Candidates need to log in to your account and click on IAT Channel Tab. Then they will be able to see two tabs - "IAT 2025 Objection" tab and "Candidate Response" tab.
Candidates can go through the provisonal answer keys in order to get an estimation of the score that they can obtain in the IISER entrance exam 2025. In case of any discrepancy with respect to any question asked in the exam or its answer, candidates can raise an objection (s) to the exam authorities in the prescribed format. If the raised objection is successful, a final IISER entrance exam 2025 answer key will be released with all the required modifications.
- Direct Link to IISER Final Answer Key 2025
- IISER 2025 Important Dates Table
- Steps to Download the IISER 2025 Final Answer Key
- How to Calculate Score Based on IISER 2205 Final Answer Key
- IISER 2025 Response Sheet
- IAT 2025 Answer Key Objection Process
- How to Calculate Scores Based on IISER 2025 Answer Keys
- IISER Previous Year Answer Key
Direct Link to IISER Final Answer Key 2025
Answer Key: Jun ' 25
Candidates will be able to download the provisonal and final answer key of IISER 2025 pdf from the official website only in online mode. The authorities will release first, the provisional answer key of IISER 2025 exam pdf and candidates will be able to check their answers and calculate the probable scores secured in the IISER exam 2025. To download the IAT answer key 2025, the candidate can download from here:
Download Link-
Download IAT 2025 Question Paper and Answer Key Here:
| Language | PDF Download |
|---|---|
| English | Download Now |
| Hindi | Download Now |
Also Read: IISER 2025 Question Paper Analysis
Commonly asked questions
Candidates will be able to download the final answer key of IISER 2025 pdf from the official website only in online mode. The authorities released the first provisional answer key of IISER pdf and candidates will be able to check their answers and calculate the probable scores secured in the IISER 2025 admission test. To download the IISER answer key 2025, candidates must follow the below steps:
Go to the IISER official website - https://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
IISER Entrance exam 2025 results will be announced in the fourth week of June, 2025, tentatively. Test takers who successfully appeared in the IAT 2204 exam will be able to download their score card by visiting the official website of IISER 2025.
The official IISER 2025 link for downloading the IISER Entrance exam result is- iiseradmission.in.
Candidates need to enter the application number and password/date of birth as the login details to check your IAT result. Other than this, security question or the captcha that is provided on the login page. If you have forgotten your application number then you will need your registered mobile number and email to retrieve the application number.
The candidates are advised to keep the application number saved to avoid any hassle while downloading the IAT result.
You can re-generate your IISER application number by clicking on the Forgot Application link available on the account login window. The steps to get the application number have been given below for the candidates:
a) Go to the application window/result window
b) Click on the forgot application number link
c) Fill out the details asked
d) The application number will be sent to the registered mobile number and email.
OR
Candidates can check out their e-mail where at the time of registration, IAT exam authority must have sent the application number on successful registration.
IISER 2025 Important Dates Table
Take a look at the table below for the complete schedule of IISER Entrance Exam 2025 exam
| Dates | Upcoming Exam Dates |
|---|---|
| Jun ' 25 | IISER Aptitude Test 2025 Display of Final Answer Keys TENTATIVE |
| Jun ' 25 - Jul ' 25 | IISER 2025 Registration for counselling process TENTATIVE |
| Dates | Past Exam Dates |
|---|---|
| May ' 25 | IISER 2025 Aptitude Test Portal opens to file objections |
| 25 May ' 25 | IISER Aptitude Test 2025 Display of Answer Keys |
| 25 May ' 25 | IISER Aptitude Test 2025 Upload of student's response form |
Steps to Download the IISER 2025 Final Answer Key
Candidates will be able to download the final answer key of IISER 2025 pdf from the official website only in online mode. The authorities released the first provisional answer key of IISER pdf and candidates will be able to check their answers and calculate the probable scores secured in the IISER 2025 admission test. To download the IISER answer key 2025, candidates must follow the below steps:
-
Go to the IISER official website - https://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
Also Read: IISER Exam 2026
.
Commonly asked questions
The online window to raise representations about questions/answers in IAT 2025 started on May 29, 2025 from 5 pm onwards. The last date to raise objections will be June 01, 2025 till 5 pm. Candidates need to log in to your account and click on IAT Channel Tab. Then they will be able to see two tabs - "IAT 2025 Objection" tab and "Candidate Response" tab.
Candidates can go through the provisonal answer keys in order to get an estimation of the score that they can obtain in the IISER entrance exam 2025. In case of any discrepancy with respect to any question asked in the exam or its answer, candidates can raise an objection (s) to the exam authorities in the prescribed format. If the raised objection is successful, a final IISER entrance exam 2025 answer key will be released with all the required modifications.
IISER is expected to release the IAT 2024 Exam Answer Key at its official website on May 25, 2025. Candidates who have appeared in IISER Aptitude Test will be able to check their answers marked for the questions asked and can evaluate their final marks scored. Candidates must note that these are not the final answer key that the examination conducting body, IISER released. These are the provisional answer key. Applied candidates will get the opportunity to raise objections if they found any mistakes in the provided answer key.
Indian Institutes of Science Education and Research (IISER), the examination conducting body will release the IISER Aptitude Test (IAT) 2025 Student Response Sheet on second week of June 2025, tentatively. Candidates can visit the official website of IISER and after logging in with their credentials can finally view their IAT 2025 Response Sheet. Candidates can finally tally up their marks scored in the IISER Aptitude Test which will be conducted in the first week of June 2025, tentatively.
How to Calculate Score Based on IISER 2205 Final Answer Key
The IISER 2025 score is evaluated based on the IISER 2025 examination marking scheme. IAT 2025 Results will be compiled based on the corrections made in the provisional answer key (also called IAT Final answer key). According to the IAT 2025 exam pattern, the candidates must remember the following marking scheme while calculating IAT 2025 score:
The marking scheme of the IAT 2025 is as follows:
-
Each question carries four marks.
-
For each correct response, candidates will get four marks.
-
For each incorrect answer, one mark will be deducted from the total score.
-
Unanswered/un-attempted answers will be given no marks.
Also Read: IISER 2025 Marks vs Rank
IISER 2025 Response Sheet
The exam officials will display the recorded responses and Question Paper attempted by the candidates on the official website before the declaration of the result/Score. The recorded responses are likely to be displayed for two to three days.
Direct Link to Download IAT 2025 Student Response Sheet- https://iiseradmission.in/
How to Download IISER Exam 2025 Student Response Sheet?
Candidates can follow the step-by-step procedure mentioned below to know how to download the IISER Exam response sheet 2025:
- Candidates need to visit the official website of IISER Exam 2025 first or can also check the release information by visiting the official website.
- Next, log in their registered account on the IISER Exam 2025 official website by filling in their application ID and date of birth.
- Candidates can now see the IISER Exam response sheet 2025 on the screen.
- Candidates can download the IISER Exam 2025 response sheet PDF from there.
Also Read: IISER Counselling 2025
IAT 2025 Answer Key Objection Process
IAT 2025 Objection Raise Window: The online window to raise representations about questions/answers in IAT 2025 will be opened soon. Candidates need to log in to your account and click on IAT Channel Tab. Then they would be able to see two tabs - "IAT 2025 Objection" tab and "Candidate Response" tab. Candidates can go through the provisional answer keys in order to get an estimation of the score that they can obtain in the IISER entrance exam 2025.
In case of any discrepancy with respect to any question asked in the exam or its answer, candidates can raise an objection(s) to the exam authorities in the prescribed format. The last date for raising the IAT 2025 answer key objections will be notified soon. If the raised objection is successful, a final IISER entrance exam 2025 answer key will be released with all the required modifications.
After submitting the appropriate answers with proof and if found the correct. Candidates can get marks for that answer. IISER entrance exam answer keys contain correct answers for all questions asked in the written test. Aspirants who have taken the exam will get the opportunity to file objections against the answer key. The final answer key will be made available on the official website in the first week of June 2025.
Also Read: IAT Exam 2025 Cut Off
How to Calculate Scores Based on IISER 2025 Answer Keys
Candidates will have to calculate their estimated scores based on the following method:
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For each correct answer, add four marks
-
For each wrong answer, deduct one mark
-
No marks will be awarded for unattempted questions
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IISER Previous Year Answer Key
IISER Entrance Exam 2023 Final answer key was released by the conducting body on June 28, 2023. IAT 2023 final answer key was the same as of IISER Provisional answer key. The only difference that the candidate will find in the IAT 2023 answer key is the solution to the Question No 14 of Chemistry subject.
For better understanding, candidates can view the question and the answer also which is specified in the final answer key. The rest of the answers are the same as of provisional answer key.
Question 14
In two solutions X (hexane and benzene) and Y (water and HCl), what types of deviations from Raoult’s law are observed?
(a) CORRECT ANSWER No deviation (ideal behaviour) and negative deviation, respectively.
(b) Negative deviation and positive deviation, respectively.
(c) CORRECT ANSWER Positive deviation and negative deviation, respectively.
(d) Positive deviation and no deviation (ideal behaviour), respectively.
Indian Institutes of Science Education and Research (IISER), the examination conducting body released the IISER Aptitude Test (IAT) 2023 Student Response Sheet on June 20, 2023. Candidates could visit the official website of IISER and after logging in with their credentials can finally view their IAT 2023 Response Sheet.
IISER candidates can download the provisonal answer key in both the hindi and english languages separately here:
Get prep tips, practice papers, exam details and important updates
IISER Entrance Exam Exam
Student Forum
Anything you would want to ask experts?Answered 3 days ago
Based on the corrections made in the provisional answer key, exam officials will release the IAT 2025 Final answer key in the second week of June 2025. The scorecards of IISER 2025 will be made based on the final answer key and test takers will be able to download the scorecard PDF by logging in to
R
Beginner-Level 4
Answered 6 days ago
Yes, the IISER Entrance Test is compulsory to get admission into the BS+MS course at IISER Pune. On the basis of a candidate's score in the IISER entrance exam (also known as the IISER aptitude test), candidates can secure admission to the IISER Pune BS+MS course. After evaluating applicants' scores
R
Contributor-Level 10
Answered 6 days ago
No, candidates cannot take admission in IISSER Pune BS+MS course without the IISER Entrance Exam. Candidates willing to take admission in the BS-MS course at Indian Institutes of Science Education and Research (IISERs) must appear for the IISER entrance exam, also known as the IISER aptitude test. C
K
Contributor-Level 10
Answered a week ago
The expected application fee for IISER Entrance Exam 2025 of various categories is as follow:
1. INR 2,000/- for candidates applying under General, EWS, and OBC-NCL categories.
2. INR 1,000/- for candidates applying under persons with disabilities, persons registered as Kashmir migrants and SC/ST cat
T
Contributor-Level 10
Answered a week ago
Following the previous year trends and as per the updates mentioned on the IISER 2025 official website, IISER do not release IAT 2025 cut off marks. However, the exam officials based on the counselling registration done for admissions by the candidates, the exam officials releases the round wise IIS
N
Contributor-Level 10
Answered 2 weeks ago
It is highly likely that IISER 2025 cut-off scores will increase for the academic session 2025-26, or at least remain competitive. Here's why, based on the trends and factors influencing IISER admissions:
Key Factors Indicating a Potential Increase in Cut-offs:
Increased Number of Applicants: Reports
M
Beginner-Level 4
Answered 2 weeks ago
IISER result date 2025 is yet to be announced by the exam officials. Typically, IAT results are announced within 15-20 days of the exam, so this date is for reference only. Once released, the IISER IAT Result Link 2025 will be live on the official website, iiseradmission.in, where you can download y
N
Beginner-Level 4
Answered 3 weeks ago
IISER 2025 exam was held on May 25, 2025 for the candidates taking admissions to the BS-MS, BS, B.Tech degree courses offered at IISERs, IISc Bangalore, and IIT Madras. After the successful of the examination, the exam officials released the IISER 2025 Student Response Sheet on May 29, 2025.
The IISE
R
Beginner-Level 4
Answered 3 weeks ago
Exam officials released the IAT 2025 answer key on May 25, 2025 after the successful conduct of the examination. Test takers will be able to tally their score from the released answer key.
At first the exam officials will release the IISER 2025 provisional answer key and is subject to raise objection
D
Beginner-Level 4
Answered a month ago
IISER cutoff 2024 was released for admission to the MSc specialisations, on the basis of CCMN scores. The cutoff wasd released across a few specialisations in the MSc course. Among the General AI category candidates, the cutoff ranks in the last round were as follows- 795 for admission to M.Sc. in M
S
Contributor-Level 6
IISER Entrance Exam Notifications
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