CSIR NET December Answer Key 2025 Released: Download Response Sheet & Check Marking Scheme

The CSIR NET December Answer Key 2025 is expected to be released today, 26 December 2025, on the official website csirnet.nta.ac.in. Candidates who appeared for the CSIR UGC NET December 2025 examination, conducted on 18 December 2025, can download the provisional answer key along with their response sheet to evaluate their performance. The examination was conducted by the National Testing Agency (NTA) in two shifts through Computer Based Test (CBT) mode.

Why CSIR NET Answer Key 2025 Is Important

The CSIR NET answer key plays a crucial role in helping candidates:

• Verify their marked responses with official answers
• Calculate their expected score before the result declaration
• Identify any incorrect answers and raise objections, if required
• Understand their chances for JRF, Assistant Professor, or PhD admission

Releasing the answer key ensures transparency and fairness in the evaluation process.

CSIR NET December Answer Key 2025: Main Points

Particulars	Details
Exam Name	CSIR UGC NET December 2025
Conducting Body	National Testing Agency (NTA)
Exam Date	18 December 2025
Answer Key Release Date	26 December 2025 (Expected)
Mode of Answer Key	Online
Objection Fee	₹200 per question
Official Website	csirnet.nta.ac.in

How to Download CSIR NET Answer Key 2025?

Follow these steps to download the CSIR NET December Answer Key and Response Sheet:

1. Visit the official website csirnet.nta.ac.in
2. Click on “Joint CSIR NET December 2025 – Answer Key Challenge”
3. Log in using your Application Number and Date of Birth
4. Enter the security pin and submit
5. View your answer key and response sheet
6. Download the PDF for score calculation

CSIR NET December Answer Key 2025: Objection Process

If a candidate finds any discrepancy in the provisional answer key, they can raise an objection within the specified time window.

1. Log in to csirnet.nta.ac.in
2. Click on “Answer Key Challenge”
3. Select the question ID you want to challenge
4. Upload supporting documents (PDF format)
5. Pay ₹200 per question (non-refundable)
6. Submit the challenge

After reviewing all objections, NTA will release the final answer key, which will be used to prepare the result.

CSIR NET December 2025 Marking Scheme 

The CSIR NET exam follows a subject-wise and part-wise marking scheme. Understanding it correctly will help candidates calculate their expected score accurately.

General Marking Rules

• Part A & Part B: Correct answer: +2 mark & Wrong answer: –0.5 mark (25% negative marking)
• Part C: Correct answer: +4 marks & Wrong answer: –1 mark (25% negative marking)

Subject-Wise CSIR NET Marking Scheme

Chemical Sciences, Earth Sciences, Life Sciences

Part A

• +2 marks for every correct answer
• –0.5 mark for each incorrect answer

Part B

• +2 marks for every correct answer
• –0.5 mark for each incorrect answer

Part C

• +4 marks for every correct answer
• –1 mark for each incorrect answer

Mathematical Sciences

Part A

• +2 marks for every correct answer
• –0.5 mark for each incorrect answer

Part B

• +3 marks for every correct answer
• –0.75 mark for each incorrect answer

Part C

• +4.75 marks for every correct answer
• No negative marking in this part

Physical Sciences

Part A

• +2 marks for every correct answer
• –0.5 mark for each incorrect answer

Part B

• +3.5 marks for every correct answer
• –0.875 mark for each incorrect answer

Part C

• +5 marks for every correct answer
• –1.75 marks for each incorrect answer

How to Calculate Your CSIR NET Expected Score

1. Count all correct answers and multiply by the marks allotted
2. Count all incorrect answers and subtract negative marks
3. Add all section-wise scores to get your final expected score

This score gives a fair estimate of your performance before the official result.

What Happens After the Answer Key?

• NTA releases the final answer key after objection review
• CSIR NET Result 2025 is prepared based on the final key
• Qualified candidates become eligible for:
  • Junior Research Fellowship (JRF)
  • A+ssistant Professor
  • PhD admission in Indian universities

Frequently Asked Questions (FAQs)