NEST Answer Key 2025: Check Answer Key Date, Step to Download

The final answer of NEST 2025 will be updated on the page after the exam is completed, till then applicants can check the NEST previous year answer key in the table given below: 

NEST 2023 Final Answer Key

Since the 2025 exam has not been conducted yet hence applicants are advised to check the NEST provisional key for the previous year in the table. 

NEST 2203 provisional answer keys

Candidates can refer to the NEST answer keys and question papers for better preparation for the exam. Here we bring the NEST 2022 answer keys in PDF format as released by the exam conducting body. This is the final answer key, the information will be updated as soon as this year's answer keys are out. 

The answer key will be published on the official website of NEST 2025, and candidates can obtain it by following the steps given below: 

1. Sign in to the registered email ID and click on the mail sent by NISER Bhubaneswar
2. On clicking it, candidates can download the answer keys along with their answer scripts
3. The correct answers to the questions are marked there with a green tick
4. Download and save the answer key to cross-check it with the question paper of NEST 2025.
5. In a box on the right, “Question ID” for each question will be there which must be kept a note of
6. Each candidate has a “Participant ID” which you will find at the top of the answer script, which must be saved to raise queries.

Candidates can cross-verify the correct options against each question of NEST 2025 and check if there are any errors on them. NISER will share the process and schedule of filing objections on the answer key in notification only. 

Candidates need to follow the steps given below to raise queries or objections against one or more NEST 2025 answer keys:

• Send an email carrying the subject (Physics, Chemistry or Biology), Question ID (available on the answer keys), and Participant ID (sent to them through answer key email) to the respective subject-wise email address by marking a copy to the ID nest-exam@niser.ac.in

• The subject line of the email should be subject name: Question ID and Participant ID. For example, to raise a query about a question in the Chemistry section with “Question ID” 1111111111 and “Participant ID” 222222222222, the subject line of the email should be: Chemistry:1111111111, 222222222222

• The body of the email should be brief and to the point and there should not be any attachments

Here is the detailed procedure for how candidates can raise objections against the NEST 2025 provisional answer key, as specified on the official website of NEST:

1. After logging into their respective accounts, candidates will be able to see "Candidate Response".

2. After clicking on ‘here’ button you will be able to view the Question, and four possible options, correct option highlighted in green colour will be visible to you, compare the correct option with the Option Chosen by you on exam day which will be visible to you right side upper corner of each question.

3. If you find any discrepancy in answer keys and wish to object, go to the Objection form Tab to object, please note down the Question ID and Option ID somewhere before moving to the objection tab to raise objection.

Steps to Raise NEST 2025 Objection:

Here is the snippets mentioned below for objecting the NEST answer key, provided by the examination conducting body.

After following the above steps, candidates can now upload a maximum of 3 supporting documents in PDF, JPG, and JPEG format (max size 400 KB), after uploading document 1 candidates need to select document 2 and then upload the required file, if uploading the second document keeping
your selection in document 1, then it will overwrite the previously uploaded document. Please note at least one document is mandatory to upload.

Complete the payment and your Objection will be registered successfully.

NISER Bhubaneswar will announce the subject-wise email addresses wherein candidates have to send their NEST answer key objections.

The following are the respective Email IDs for challenging the answer key of NEST 2025 exam:

In case the above factors are not followed, the answer to key queries or objections will not be considered by the NEST Question Paper Committee. All candidate queries will be considered by the Question Paper Committee and if there is a change in the answer key it will be announced to all candidates. Most candidates who raise queries will not receive individual responses but all legitimate queries will be considered and discussed fully by the Committee.