The National Testing Agency (NTA) has released the provisional answer key for the CSIR NET December 2025 exam. Students who appeared for the exam can now check their answers. This answer key helps candidates see the correct solutions to the questions asked in the test. You can download the answer key from the official NTA website: csirnet.nta.nic.in .
The CSIR NET December 2025 exam took place on December 18, 2025 . It was held for five different science subjects. Candidates can use this provisional answer key to estimate their scores. If any candidate finds a mistake in the answer key, they have a short time to challenge it online. This process allows students to point out errors and ask for a review.
What is the CSIR NET Exam?
The CSIR NET (Council of Scientific & Industrial Research National Eligibility Test) is a national-level exam. It is for students who want to become Junior Research Fellows (JRF) or Lecturers in universities and colleges across India. This exam covers subjects in the fields of Chemical Sciences, Earth Sciences, Life Sciences, Mathematical Sciences, and Physical Sciences. Clearing this exam is an important step for those looking to build a career in scientific research and teaching.
How to Download the CSIR NET December 2025 Answer Key
Follow these simple steps to download the provisional answer key:
- Step 1: Go to the official website of CSIR NET: csirnet.nta.nic.in .
- Step 2: Look for a link on the homepage that says ' CSIR NET December 2025 Provisional Answer Key ' or similar.
- Step 3: Click on this link.
- Step 4: You will need to enter your application number and date of birth (or password).
- Step 5: After logging in, the provisional answer key will appear on your screen.
- Step 6: You can view and download the answer key. It is a good idea to save a copy for your records.
Important Details at a Glance
| Exam Name | CSIR NET December 2025 |
| Organisation | National Testing Agency (NTA) |
| Exam Date | December 18, 2025 |
| Answer Key Type | Provisional |
| Official Website | csirnet.nta.nic.in |
| Challenge Fee | INR 200 per question |
Understanding the Provisional Answer Key
The answer key released now is a 'provisional' key. This means it is a temporary key. The NTA releases it so candidates can check their answers and raise objections if they find any errors. After reviewing all objections, the NTA will release a 'final' answer key. The final answer key cannot be challenged again. Your exam results will be based on this final answer key.
How to Challenge the CSIR NET December 2025 Answer Key
If you believe an answer in the provisional key is wrong, you can challenge it. Follow these steps carefully:
- Step 1: Visit the official CSIR NET website: csirnet.nta.nic.in .
- Step 2: Log in using your application number and password or date of birth.
- Step 3: Find the link for 'Challenge Answer Key' or 'Submit Objections'.
- Step 4: Select the question ID you wish to challenge.
- Step 5: Choose the correct option according to your knowledge.
- Step 6: Provide clear reasons for your challenge.
- Step 7: Upload supporting documents. These documents should prove why your suggested answer is correct.
Challenge Fees and Documents
When challenging an answer, please note the following:
- You must pay a fee of INR 200 for each question you challenge. This fee is non-refundable.
- Payment is usually made online through net banking, debit card, or credit card.
- You must upload valid supporting documents. These could be from standard textbooks or reliable academic sources.
- All supporting documents for one challenge must be combined into a single PDF file .
- The window for submitting challenges is usually short, about 2 to 3 days . It is important to check the exact start and end dates on the official NTA website as soon as possible.
What Happens Next?
After the challenge window closes, the NTA will review all the objections received. Experts will check the challenges and make necessary corrections to the answer key. Once this review is complete, the final answer key will be published. Shortly after, the results for the CSIR NET December 2025 exam will be announced based on this final key. Keep checking the official NTA website for all future updates.