NEST Answer Key 2025 Out – Steps to File Objection Online

The NEST 2025 answer key is available for candidates who took this year's NEST entrance exam. The deadline for students to submit the answer key is June 25, 2025.. 

The NEST 2025 answer key PDF is now available on the official website. Candidates can challenge the NEST answer key until June 25, 2025. Students wishing to have their NEST 2025 scores assessed must visit the official website to lodge objections, along with a valid justification, within the given deadline. Once the objection filing period has passed, no candidates will be eligible to lodge any objections.

The National Institute of Science Education and Research (NISER) in Bhubaneswar and the UM-DAE CEBS in Mumbai have released the provisional answer key for the NEST 2025 exam. The NEST 2025 exam will be held on June 22, 2025, in 140 cities across India. Candidates must log in with their credentials to access the NEST answer key. Students should also refer to the NEST marking system to properly assess their scores.

NEST 2025 Marking Scheme

Review the NEST marking scheme before assessing the NEST answer key scores.

1. For each correct answer, candidates will earn 3 marks
2. For each wrong answer, 1 mark will be deducted.
3. No marks deducted for not attempting any question

NEST 2025: How to Object to the Answer Key?

Here are the steps for candidates to object without any confusion. 

1. Candidates must log in with their registered email and open the email sent by NISER Bhubaneswar.
2. Candidates must click the download link for the NEST answer key and answer script.
3. To identify the correct options, candidates must check the green check mark before evaluating and comparing answers.
4. After saving the NEST answer key, candidates can compare their answers with the NEST 2025 question paper, also available along with the NEST 2025 answer key in PDF format.
5. On the right, there is the "Question ID" for each question, which students should write down.
6. Each candidate has their unique "Participant ID" at the top of the answer key; students should use this to raise any objections or queries.