CSIR NET 2025 December Answer Key LIVE Updates: The National Testing Agency has successfully conducted the CSIR NET December session for five science subjects on December 18, 2025. Candidates might be eagerly waiting to review the total correct and incorrect attempts from the answer key. According to the latest updates, the candidates can access the provisional keys anytime soon. Along with the answer key, NTA will also share the response sheet link on the online portal.
To check and download the answer key with the response sheet, candidates must log in to the portal using their application number and other details. The answer key PDF will contain the correct responses for the questions asked in the entrance exam. Check the live updates on CSIR NET 2025 December answer key and response sheet on this page.
| Status || Not Yet Released | Last Checked || 8:14 PM (December 24) |
Also Read: CSIR NET 2025 Answer Key Release Date: Last 3 Year Trends
CSIR NET 2025 December Answer Key Direct Link
The participants can access CSIR NET 2025 December answer key from the table below. We will soon share the link after it is released on the NTA website.
| CSIR NET 2025 December Answer Key Direct Link (to be Activated Soon) |
Brief Overview of the Benefits of CSIR NET December 2025 Answer Key
We have given some of the benefits of referring to CSIR NET December 2025 answer key and response sheet below:
- The provisional answer keys are a helpful resource in understanding the correct answers to the questions asked in the exam.
- Candidates can download both the answer key and response sheet from the online portal to analyse performance.
- For predicting a probable score, candidates can compare their response sheet with the answer key to review the total number of correct and incorrect attempts. Based on the marking criteria, they can allot marks to get a fair idea of the total score.
Live Updates
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Section A: +2, -0.5
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Section B: +2, -0.5
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Section C: +4, -1.32
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Section A: +2, -0.5
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Section B: +2, -0.5
- Section C: +4, -1
| Category | Minimum Qualifying Marks |
| ST | 25% |
| Category | Minimum Qualifying Marks |
| SC | 25% |
| Category | Minimum Qualifying Marks |
| OBC | 33% |
| Category | Minimum Qualifying Marks |
| General | 33% |
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Exam Name
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Exam Date
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Shift Number
- Correct Answer: +2 or +4 marks (depending on the section/subject).
- Incorrect Answer: Negative marking of 25% of the marks assigned to that question.
- Unattempted: 0 marks.
- Correct Answer: +2 or +4 marks (depending on the section/subject).
- Incorrect Answer: Negative marking of 25% of the marks assigned to that question.
- Unattempted: 0 marks.
- Visit the official portal at csirnet.nta.ac.in.
- Click on the link for "CSIR NET December 2025 Answer Key Challenge".
- Log in using your Application Number and Date of Birth or Password.
- The subject-wise answer key and your recorded responses will be displayed.
- Download the PDF for your specific subject (Life, Chemical, Physical, Mathematical, or Earth Sciences)
The CSIR NET December 2025 Final Answer Key is expected to be published approximately 1–2 months after the provisional key, alongside the final results.
Candidates will typically have 2–3 days after the release to challenge any answers for a non-refundable fee of ₹200 per question.
CSIR NET 2025 December Provisional Answer Key likely to be released between December 23 and 25, 2025.
Students must check the subject-wise 5-year's cutoff trends for the CSIR JRF NET examination provided below.
| Subjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Chemical Science | 59 - 25 | 50.75 - 25.25 | 52.75 - 25 | 50.5 - 25 | 55.25 - 25 |
| Earth Science | 62.63 - 25.10 | 60.29 - 32.33 | 60.86 - 26.4 | 59.86 - 29.33 | 64.29 - 29.35 |
| Life Science | 99.2136117 - 97.1787795 | 98.8142819 - 61.8093224 | 98.7860248 - 64.7657382 | 98.9427783 - 74.7501249 | 54.5 - 25 |
| Mathematical Science | 54.875 - 26.125 | 48.38 - 25 | 49.25 - 25 | 57 - 28.75 | 53.63 - 25 |
| Physical Science | 43.938 - 25.875 | 50.25 - 25.63 | 38.813 - 25 | 46.25 - 25 | 51.06 - 25 |
CSIR NET cut off 2025 varies every year depending on several factors. As the factors change every year, so does CSIR NET result cut off 2025. However, the factors determining the cutoff has been given in the pointers below.
- Number of seat intakes.
- Number of candidates appeared for the exam.
- Number of candidates qualified the exam.
- The difficulty level of the exam.
- Previous year cutoff trends.
Candidates can check the program-wise CSIR NET cut-off 2025 from the official website of the Council of Scientific and Industrial Research (CSIR). The steps to download the CSIR NTA cut off 2025 are provided below.
- Step 1: Candidates must visit the official website at csirnet.nta.nic.in to view the cut off CSIR NET 2025.
- Step 2: On CSIR NET's home page, candidates must scroll down to find 'News and Announcement' Inside the same section, candidates will find the link for the CSIR NET 2025 cutoff.
- Step 3: Candidates must click on the same to view their CSIR NET result 2025 cut off.
- Step 4: Candidates will be presented with the cut-off of CSIR NET.
| Category | Minimum Qualifying Marks |
| General | 33% |
| OBC | 33% |
| SC | 25% |
| ST | 25% |
| PwD | 25% |
To download the answer key, visit the official CSIR NET NTA portal and log in using your Application Number and either your Date of Birth or Password.
If you wish to challenge a question, there is a non-refundable fee of INR 200 per question. You will need to select the Question ID and the corresponding Option ID, upload supporting documents, and submit payment.
| Response Type | Marks Awarded |
| Correct Answer | +2 marks |
| Incorrect Answer | No negative marking |
| Unattempted Question | 0 mark |
Candidates will be allowed to challenge the provisional answer key through the official objection window opened by NTA.
Key Points:
- Objection window is usually open for 2–3 days
- Valid proof/documents are mandatory for each challenge
- A non-refundable fee of ₹200 per question may be applicable
- Only objections submitted within the deadline will be considered
After reviewing all challenges, NTA will publish the CSIR NET Final Answer Key, based on which the result will be declared.
NTA will also release the CSIR NET 2025 response sheet along with the answer key. The response sheet contains the answers marked by the candidate during the exam. It is essential for verifying responses and calculating expected scores.
To access the CSIR NET Response Sheet 2025, candidates must log in using their application number and date of birth or password. The response sheet is crucial for candidates planning to raise objections against the provisional answer key.
- Objection Window: Typically open for 2–3 days following the release of the provisional key.
- Processing Fee: Candidates must pay a non-refundable fee of ₹200 per question challenged.
- Procedure: Challenges must be submitted online through the login portal, accompanied by supporting documents in a single PDF file
The CSIR NET December 2025 provisional answer key and response sheets are expected to be released by the National Testing Agency (NTA) between December 23 and December 25, 2025.
| Subjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Physical Science | 43.938 - 25.875 | 50.25 - 25.63 | 38.813 - 25 | 46.25 - 25 | 51.06 - 25 |
| Subjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Mathematical Science | 54.875 - 26.125 | 48.38 - 25 | 49.25 - 25 | 57 - 28.75 | 53.63 - 25 |
| ubjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Life Science | 99.2136117 - 97.1787795 | 98.8142819 - 61.8093224 | 98.7860248 - 64.7657382 | 98.9427783 - 74.7501249 | 54.5 - 25 |
| Subjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Earth Science | 62.63 - 25.10 | 60.29 - 32.33 | 60.86 - 26.4 | 59.86 - 29.33 | 64.29 - 29.35 |
Students must check the subject-wise 5-year's cutoff trends for the CSIR JRF NET examination provided below.
| Subjects | 2023 (%) | 2022 (%) | 2021 (%) | 2020 (%) | 2019 (%) |
| Chemical Science | 59 - 25 | 50.75 - 25.25 | 52.75 - 25 | 50.5 - 25 | 55.25 - 25 |
CSIR NET cut off 2025 varies every year depending on several factors. As the factors change every year, so does CSIR NET result cut off 2025. However, the factors determining the cutoff has been given in the pointers below.
- Number of seat intakes.
- Number of candidates appeared for the exam.
- Number of candidates qualified the exam.
- The difficulty level of the exam.
- Previous year cutoff trends.
-
Section A: +2, -0.5
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Section B: +3.5, -0.875
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Section C: +5, -1.25
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Section A: +2, -0.5
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Section B: +3, -0.75
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Section C: +4.75, No negative marking
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Section A: +2, -0.5
-
Section B: +2, -0.5
-
Section C: +4, -1
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Section A: +2, -0.5
-
Section B: +2, -0.5
-
Section C: +4, -1.32
-
Section A: +2, -0.5
-
Section B: +2, -0.5
- Section C: +4, -1
| Category | Minimum Qualifying Marks |
| ST | 25% |
| Category | Minimum Qualifying Marks |
| SC | 25% |
| Category | Minimum Qualifying Marks |
| OBC | 33% |
| Category | Minimum Qualifying Marks |
| General | 33% |
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Exam Name
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Exam Date
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Shift Number
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Subject Name
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Subject Code
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Question Numbers
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Correct Option
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Visit the official CSIR NET website.
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Go to the 'Notice and Events' section.
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Click on 'Challenge CSIR NET Answer Key 2025'.
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Log in with application number and date of birth.
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Select the question and corresponding option ID.
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Click 'Save your Claim'.
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Upload supporting documents.
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Make the online payment.
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Submit the claim.
- Correct Answer: +2 or +4 marks (depending on the section/subject).
- Incorrect Answer: Negative marking of 25% of the marks assigned to that question.
- Unattempted: 0 marks.
- Visit the official portal at csirnet.nta.ac.in.
- Click on the link for "CSIR NET December 2025 Answer Key Challenge".
- Log in using your Application Number and Date of Birth or Password.
- The subject-wise answer key and your recorded responses will be displayed.
- Download the PDF for your specific subject (Life, Chemical, Physical, Mathematical, or Earth Sciences)
The CSIR NET December 2025 Final Answer Key is expected to be published approximately 1–2 months after the provisional key, alongside the final results.
Candidates will typically have 2–3 days after the release to challenge any answers for a non-refundable fee of ₹200 per question.
CSIR NET 2025 December Provisional Answer Key likely to be released between December 22 and 25, 2025.