CSIR NET 2025 December Answer Key OUT@csirnet.nta.nic.in Live - PDF Download Link & Objection Details
The CSIR NET 2025 Answer key has been released on the official portal at csirnet.nta.nic.in. The candidates can send the objections against the incorrect answers is January 1, 2026 (till 11.00 PM). The exam was conducted on December 18. Scroll down for the latest live updates about the CSIR NET answer key 2025 live updates.
CSIR NET Dec Answer Key 2025 Live Updates
CSIR NET 2025 Answer Key(OUT): The National Testing Agency (NTA) has released the CSIR NET 2025 Answer Key on its official website - csirnet.nta.nic.in. The candidates can send the objections against the incorrect answers till January 1, 2026 till 11.00 PM after paying the non-refundable fee of INR 200. The CSIR NET 2025 exam was conducted on December 18. It is to be noted that the CSIR NET answer key for the December session is released spearately for each subjects including Chemical Sciences, Earth Sciences, Life Sciences, Mathematical Sciences and Physical Science.
Candidates can download their answer key by using the login credentials. The answer key objection raising window is opened till January 1. Candidates finding any error or discrepancy can challenge the CSIR NET Dec answer key. The objections will be reviewed and based on it the final answer key and result will be released. Scroll down for the latest live updates about the CSIR NET answer key 2025 live updates.
How To Download CSIR NET Answer Key 2025?
- Visit at csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET December 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
Direct link to check the CSIR NET Answer Key 2025 Notice :https://cdnbbsr.s3waas.gov.in/s3efdf562ce2fb0ad460fd8e9d33e57f57/uploads/2025/12/202512301684975106.pdf
LIVE UPDATE
CSIR NET December Answer Key 2025 Live Updates
- 11:15 AM IST• 31 Dec 2025
Is the CSIR NET 2025 Provisional Answer Key released?
Yes. The CSIR NET 2025 Provisional Answer Key for the December session was released.
- 10:45 AM IST• 31 Dec 2025
What is the last date to send objections against CSIR NET 2025 Answer Key?
The last date to send the objections against the incorrect answers given in the official CSIR NET answer key 2025 is January 1, 2026.
- 10:03 AM IST• 31 Dec 2025
CSIR NET Answer key 2025 OUT
The CSIR NET 2025 Answer Key released by the National Testing Agency. The candidates can send the objections till January 1, 2026 till 11.00 PM.
- 9:13 AM IST• 31 Dec 2025
CSIR NET 2025 Live Updates: What after the Answer Key released?
After downloading the provisional answer key, candidates can calculate their expected marks by matching their answers with the official responses. If candidates find any mistake in the provisional answer key then the authority will open an objection window of a limited time period. During this time period, candidates can submit their challenges by providing the supporting documents and paying the required fee for each objection.
- 8:24 AM IST• 31 Dec 2025
When was the CSIR NET 2025 December session exam conducted?
The CSIR NET 2025 December session exam was conducted on December 18 at various centres across the country in two shifts on a single day.
- 7:43 AM IST• 31 Dec 2025
CSIR NET 2025 Live: Exam Pattern (Physical Sciences)
Particulars
Part A
Part B
Part C
Total
Total Questions
20
25
30
75
Max no of questions to attempt
15
20
20
55
Marks for each correct answer
2
3.5
5
200
Negative marking of 25%
0.5
0.875
1.25
-
- 7:01 AM IST• 31 Dec 2025
CSIR NET 2025 Answer Key LIVE: Where will the link be activated?
The NTA activated the CSIR NET 2025 Answer Key Link for the December session at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 6:11 AM IST• 31 Dec 2025
How to download CSIR NET Answer Key 2025?
- Go to official website csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET December 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
- 5:00 AM IST• 31 Dec 2025
Is CSIR NET 2025 Answer key published?
Yes. The NTA released the CSIR NET 2025 Answer Key at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 4:10 AM IST• 31 Dec 2025
CSIR NET 2025 Answer key LIVE: How to Challenge it?
Candidates can follow the methods mentioned below to challenge the answer key:
- Visit at csirnet.nta.nic.in
- Click on the answer key link
- Enter the application number, password/date of birth and security pin
- Click on the Sign In button
- Click on the link available to challenge the answer key
- Select the correct answer option ID for the question ID for which the challenge needs to be made
- Click on the 'Save Your Claims' button
- Upload the document that supports the claimed answer
- Click on ‘Save Your Claims & Pay Fee’ button
- Pay INR 200 per question in online mode via credit card/debit card/internet banking
- If any question is found to be incorrect, the benefit of marks will be given to candidates who attempted that question
- In case, it is found that along with the original answer key one more option is correct, the benefit of marks will be given to candidates who attempted any one of the correct options
- 3:17 AM IST• 31 Dec 2025
CSIR NET 2025 Live: Exam Pattern (Physical Sciences)
Particulars
Part A
Part B
Part C
Total
Total Questions
20
25
30
75
Max no of questions to attempt
15
20
20
55
Marks for each correct answer
2
3.5
5
200
Negative marking of 25%
0.5
0.875
1.25
-
- 1:42 AM IST• 31 Dec 2025
CSIR NET 2025 Answer Key LIVE: Where is the link activated?
The NTA activated the CSIR NET 2025 Answer Key Link for the December session at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 11:53 PM IST• 30 Dec 2025
CSIR NET 2025 Dec Live Updates: Life Science topic-wise questions asked
- Plant Physiology: High Weightage (10-12 Questions) asked in part C
- Cell Biology few questions asked from GLUT 5, Ribosome attached ER, Spindle Assembly-gamma tubulin
- Development Biology Multiple Questions asked from Drosophila, Asymmetric Division-Plants, Leaf Development
- Evolution moderate weightage and questions were asked from Era-based classification, K & R Selection, mass Extinction Order
- Techniques is of high relevance and questions asked from TAL Effector, CDK-2, Ramachandran Plot
- Genetics few questions were asked from Poll 2 in Lagging Strand, difference between bacteria and Archaebacteria
- Immunology/ Virology question from HPV Virus
- Classification & taxonomy moderate in difficulty level and questions asked from animal classification, Annelida vs Platyhelminthes Symmetry
- 11:17 PM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: Where will it be released?
The NTA released the CSIR NET 2025 Answer Key on the official website at csirnet.nta.nic.in.
- 10:38 PM IST• 30 Dec 2025
Will the CSIR NET 2025 Answer Key be released for all subjects?
Yes. The authority released the CSIR NET 2025 Answer Key for all the subjects separately.
- 10:35 PM IST• 30 Dec 2025
Is the CSIR NET 2025 Provisional Answer Key released?
Yes. The CSIR NET 2025 Provisional Answer Key for the December session has been released.
- 10:16 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Maths (Topics asked from Part B)
- Real Analysis: Convergence, continuity, sequences, etc.
- Linear Algebra: Eigenvalues, vector spaces, etc.
- Complex Analysis: Cauchy-Riemann, integrals
- Ordinary Differential Equations
- Abstract Algebra: Groups, rings, fields
- Basic Topology or Metric Spaces, etc.
- 9:42 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Maths (Topics asked from Part C)
- Linear Algebra questions were a challenging in nature
- Complex analysis questions/Advanced Real questions
- Functional equations
- Non-routine differential equations
- Logical Chain reasoning problems, etc.
- 9:01 PM IST• 30 Dec 2025
What is the last date to send objections against CSIR NET 2025 Answer Key?
The last date to send the objections against the incorrect answers given in the official CSIR NET answer key 2025 is January 1, 2026.
- 8:13 PM IST• 30 Dec 2025
How to Download CSIR NET Answer Key 2025?
- Visit at csirnet.nta.nic.in
- Go to the link given
- A new login window will appear
- Enter the login details, which include your application number and date of birth/password
- The answer key will be shown
- Save it to your device for future use
- 7:40 PM IST• 30 Dec 2025
CSIR NET 2025 LIVE: Physical Sciences scores
Candidates can calculate it in the following manner.
CSIR NET Physical Science Paper Parts
Marks Allotted for Each Question
Marks Deducted for Each Question
A
+2
-0.5
B
+3.5
-0.875
C
+5
-1.25
- 7:10 PM IST• 30 Dec 2025
CSIR NET 2025 LIVE: Earth, Atmospheric, Ocean and Planetary Sciences scores
Candidates can calculate it in the following manner.
CSIR NET Earth Science Paper Parts
Marks Allotted for Each Question
Marks Deducted for Each Question
A
+2
-0.5
B
+2
-0.5
C
+4
-1.32
- 6:41 PM IST• 30 Dec 2025
CSIR NET Answer key 2025 Released
The CSIR NET 2025 Answer Key has been released by the National Testing Agency. The candidates can send the objections till January 1, 2026 till 11.00 PM.
- 6:39 PM IST• 30 Dec 2025
CSIR NET 2025 Live: Exam Pattern (Physical Sciences)
Particulars
Part A
Part B
Part C
Total
Total Questions
20
25
30
75
Max no of questions to attempt
15
20
20
55
Marks for each correct answer
2
3.5
5
200
Negative marking of 25%
0.5
0.875
1.25
-
- 6:09 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Maths (Topics asked from Part C)
- Linear Algebra questions were a challenging in nature
- Complex analysis questions/Advanced Real questions
- Functional equations
- Non-routine differential equations
- Logical Chain reasoning problems, etc.
- 5:34 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Maths (Topics asked from Part B)
- Real Analysis: Convergence, continuity, sequences, etc.
- Linear Algebra: Eigenvalues, vector spaces, etc.
- Complex Analysis: Cauchy-Riemann, integrals
- Ordinary Differential Equations
- Abstract Algebra: Groups, rings, fields
- Basic Topology or Metric Spaces, etc.
- 4:32 PM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live Updates: Expected Date
The NTA has not announced the releasing date of the CSIR NET answer key 2025 for the December session. It is expected to be released soon!
- 4:02 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: What after the Answer Key released?
After downloading the provisional answer key, candidates can calculate their expected marks by matching their answers with the official responses. If candidates find any mistake in the provisional answer key then the authority will open an objection window of a limited time period. During this time period, candidates can submit their challenges by providing the supporting documents and paying the required fee for each objection.
- 3:35 PM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Chemical Science Marking Scheme
CSIR NET Chemical Science Paper Parts
Marks Allotted for Each Question
Marks Deducted for Each Question
A
+2
-0.5
B
+2
-0.5
C
+4
-1
- 3:09 PM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: How to download?
- Visit at csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET December 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
- 2:33 PM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: Expected Date
The NTA is expected to release the CSIR NET 2025 Answer key for the December session today. Stay tuned for the latest live updates!
- 1:15 PM IST• 30 Dec 2025
How to check CSIR NET 2025 Answer Key?
- Visit at csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET December 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
- 11:56 AM IST• 30 Dec 2025
Is the CSIR NET Answer Key 2025 released?
No. The CSIR NET 2025 Answer Key has not been released yet.
- 11:09 AM IST• 30 Dec 2025
Where will the CSIR NET 2025 Answer key be released?
The NTA will release the CSIR NET Answer key 2025 soon at csirnet.nta.nic.in.
- 10:35 AM IST• 30 Dec 2025
Will the authority open the CSIR NET 2025 Answer key Objection window?
Yes. The authority is expected to soon release the CSIR NET 2025 Provisional answer key. The Provisional Answer Key will be released along with the question paper and marked responses. The answer key challenge window will also be opened for a limited time duration.
- 10:07 AM IST• 30 Dec 2025
Is CSIR NET 2025 Answer Key released?
No not yet. The NTA has not yet released the CSIR NET 2025 answer key for the December session. It is expected to be released soon.
- 9:34 AM IST• 30 Dec 2025
How to Download CSIR NET Answer Key 2025?
- Visit at csirnet.nta.nic.in
- Go to the link given
- A new login window will appear
- Enter the login details, which include your application number and date of birth/password
- The answer key will be shown
- Save it to your device for future use
- 9:07 AM IST• 30 Dec 2025
Marking scheme of CSIR NET Chemical Science subject
CSIR NET Chemical Science Paper Parts
Marks Allotted for Each Question
Marks Deducted for Each Question
A
+2
-0.5
B
+2
-0.5
C
+4
-1
- 8:38 AM IST• 30 Dec 2025
What was the CSIR NET 2025 December Exam Schedule Subject-Wise?
Subject Name Exam Date Exam Timings Mathematical Sciences 18-Dec-2025 3 pm to 6 pm Earth, Atmospheric, Ocean and Planetary Sciences 18-Dec-2025 9 am to 12 Noon Chemical Sciences 18-Dec-2025 3 pm to 6 pm Life Sciences 18-Dec-2025 9 am to 12 Noon Physical Science 18-Dec-2025 3 pm to 6 pm
- 8:10 AM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Exam Pattern for Mathematical Sciences
Particulars
Part A
Part B
Part C
Total
Total Questions
20
40
60
120
Max no of questions to attempt
15
25
20
60
Marks for each correct answer
2
3
4.75
200
Negative marking in Part A & B of 25% and no negative marking in Part C
0.5
0.75
0
-
- 7:36 AM IST• 30 Dec 2025
How to check CSIR NET answer key 2025?
- Visit at csirnet.nta.nic.in
- Go to the link given
- A new login window will appear
- Enter the login details, which include your application number and date of birth/password
- The answer key will be shown
- Save it to your device for future use
- 7:05 AM IST• 30 Dec 2025
CSIR NET 2025 Live Updates: Maths (Topics asked from Part C)
- Linear Algebra questions were a challenging in nature
- Complex analysis questions/Advanced Real questions
- Functional equations
- Non-routine differential equations
- Logical Chain reasoning problems, etc.
- 6:20 AM IST• 30 Dec 2025
CSIR NET 2025 Section-Wise Analysis LIVE: Mathematical Science
Part Name
Total MCQs
Total MCQs to be Attempted
Good Attempts
Difficulty Level
Part A
20
15
Moderate
11-14
Part B
40
25
Difficult
19-22
Part C
60
20
Difficult
12-15
Total
120
60
Moderate to Difficult
42-26 - 5:45 AM IST• 30 Dec 2025
CSIR NET 2025 Section-Wise Analysis LIVE: Chemical Science
Part Name
Total MCQs
Total MCQs to be Attempted
Good Attempts
Difficulty Level
Part A
20
15
Moderate
12-14
Part B
40
35
Moderate
16-22
Part C
60
25
Moderate
15-21
Total
120
75
Moderate
44-51 - 5:04 AM IST• 30 Dec 2025
CSIR NET 2025 Dec Live Updates: Life Science topic-wise questions asked
- Plant Physiology: High Weightage (10-12 Questions) asked in part C
- Cell Biology few questions asked from GLUT 5, Ribosome attached ER, Spindle Assembly-gamma tubulin
- Development Biology Multiple Questions asked from Drosophila, Asymmetric Division-Plants, Leaf Development
- Evolution moderate weightage and questions were asked from Era-based classification, K & R Selection, mass Extinction Order
- Techniques is of high relevance and questions asked from TAL Effector, CDK-2, Ramachandran Plot
- Genetics few questions were asked from Poll 2 in Lagging Strand, difference between bacteria and Archaebacteria
- Immunology/ Virology question from HPV Virus
- Classification & taxonomy moderate in difficulty level and questions asked from animal classification, Annelida vs Platyhelminthes Symmetry
- 4:34 AM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: When
The authority has not officially announced the release date of the CSIR NET 2025 Answer Key. But it is expected soon.
- 4:02 AM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: Section-Wise Exam Analysis (Life Science)
Part Name
Total MCQs
Total MCQs to be Attempted
Difficulty Level
Good Attempts
Part A
20
15
Moderate
10-12
Part B
50
35
Moderate to Difficult
25-28
Part C
75
25
Moderate to Difficult
18-19
Total
145
75
Moderate to Difficult
55-58
- 3:12 AM IST• 30 Dec 2025
CSIR NET 2025 Life Science Questions asked in Exam LIVE
- A hand pump fills a tank in 45 minutes, B in 120 minutes. How much time will they take together to fill the tank? (Work and Time Questions)
- Cube of 0.99 is closed to? (Numerical Approximation)
- Ecology-Sequence of Proterozoic, Archeozoic, Phanerozoic Eras
- Genetics- Difference between Bacteria and Archaebacteria
- Arrange in correct order: DNA Gyrase, DNA Helicase, DNA Primase, DNA Pol 3, DNA Pol 1, DNA Ligase, etc.
- 2:28 AM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: Shift timings of the exam
CSIR NET Exam Day Events
Shift 1 Timings
Shift 2 Timings
Timing of exam
9 AM to 12 PM
3 to 6 PM
Reporting time
7 to 8 AM
1 to 2 PM
- 1:42 AM IST• 30 Dec 2025
CSIR NET 2025 Answer Key Live: What was the difficulty level of Life Science exam?
As per the students' the Life Science exam overall difficulty was Moderate to Difficult.
- 12:55 AM IST• 30 Dec 2025
Is the CSIR NET 2025 Dec answer key released?
The NTA has not released the CSIR NET 2025 December session answer key. It is expected soon. Stay tuned for the latest live updates!
- 10:17 PM IST• 29 Dec 2025
CSIR NET 2025 Dec Answer Key Date
In recent cycles, NTA has released provisional CSIR NET answer key around 6 to 10 days after the exam dates. Stay tuned for the latest live updates.
- 9:02 PM IST• 29 Dec 2025
How to Download CSIR NET 2025 Provisional Answer Key?
- Go to official website csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET Dec 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
- 8:10 PM IST• 29 Dec 2025
Where will the CSIR NET 2025 Answer key be released?
The NTA will release the CSIR NET Answer key 2025 soon at csirnet.nta.nic.in.
- 7:39 PM IST• 29 Dec 2025
Will the authority open the CSIR NET 2025 Answer key Objection window?
Yes. The authority is expected to soon release the CSIR NET 2025 Provisional answer key. The Provisional Answer Key will be released along with the question paper and marked responses. The answer key challenge window will also be opened for a limited time duration.
- 7:08 PM IST• 29 Dec 2025
Is CSIR NET 2025 Answer Key released?
No not yet. The NTA has not yet released the CSIR NET 2025 answer key for the December session. It is expected to be released soon.
- 6:28 PM IST• 29 Dec 2025
How to Download CSIR NET Answer Key 2025?
- Visit at csirnet.nta.nic.in
- Go to the link given
- A new login window will appear
- Enter the login details, which include your application number and date of birth/password
- The answer key will be shown
- Save it to your device for future use
- 5:33 PM IST• 29 Dec 2025
CSIR NET 2025 Live Updates: Exam Pattern for Mathematical Sciences
Particulars
Part A
Part B
Part C
Total
Total Questions
20
40
60
120
Max no of questions to attempt
15
25
20
60
Marks for each correct answer
2
3
4.75
200
Negative marking in Part A & B of 25% and no negative marking in Part C
0.5
0.75
0
-
- 4:34 PM IST• 29 Dec 2025
CSIR NET 2025 Live Updates: Exam Pattern for Life Sciences
Particulars
Part A
Part B
Part C
Total
Total Questions
20
50
75
145
Max no of questions to attempt
15
35
25
75
Marks for each correct answer
2
2
4
200
Negative marking of 25% in Part A, B & C
0.5
0.5
1
- 2:44 PM IST• 29 Dec 2025
When was the CSIR NET 2025 December session exam conducted?
The CSIR NET 2025 December session exam was conducted on December 18 at various centres across the country in two shifts on a single day.
- 1:08 PM IST• 29 Dec 2025
When is the CSIR NET December session 2025 expected?
The CSIR NET 2025 Answer is expected to be released anytime soon on the official website at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 12:04 PM IST• 29 Dec 2025
Is CSIR NET 2025 answer key released?
No. The NTA has not yet released the CSIR NET 2025 Answer Key for the December session. It is expected soon to be announced. Stay tuned for the latest live updates!
- 11:06 AM IST• 29 Dec 2025
CSIR NET 2025 Dec Live Updates: Life Science topic-wise questions asked
- Plant Physiology: High Weightage (10-12 Questions) asked in part C
- Cell Biology few questions asked from GLUT 5, Ribosome attached ER, Spindle Assembly-gamma tubulin
- Development Biology Multiple Questions asked from Drosophila, Asymmetric Division-Plants, Leaf Development
- Evolution moderate weightage and questions were asked from Era-based classification, K & R Selection, mass Extinction Order
- Techniques is of high relevance and questions asked from TAL Effector, CDK-2, Ramachandran Plot
- Genetics few questions were asked from Poll 2 in Lagging Strand, difference between bacteria and Archaebacteria
- Immunology/ Virology question from HPV Virus
- Classification & taxonomy moderate in difficulty level and questions asked from animal classification, Annelida vs Platyhelminthes Symmetry
- 10:15 AM IST• 29 Dec 2025
Is CSIR NET 2025 Answer key published?
No. The NTA has not released the CSIR NET 2025 Answer Key. It will be released at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 9:42 AM IST• 29 Dec 2025
CSIR NET 2025 Answer key LIVE: How to Challenge it?
Candidates can follow the methods mentioned below to challenge the answer key:
- Visit at csirnet.nta.nic.in
- Click on the answer key link
- Enter the application number, password/date of birth and security pin
- Click on the Sign In button
- Click on the link available to challenge the answer key
- Select the correct answer option ID for the question ID for which the challenge needs to be made
- Click on the 'Save Your Claims' button
- Upload the document that supports the claimed answer
- Click on ‘Save Your Claims & Pay Fee’ button
- Pay INR 200 per question in online mode via credit card/debit card/internet banking
- If any question is found to be incorrect, the benefit of marks will be given to candidates who attempted that question
- In case, it is found that along with the original answer key one more option is correct, the benefit of marks will be given to candidates who attempted any one of the correct options
- 9:09 AM IST• 29 Dec 2025
CSIR NET 2025 Live: Exam Pattern (Physical Sciences)
Particulars
Part A
Part B
Part C
Total
Total Questions
20
25
30
75
Max no of questions to attempt
15
20
20
55
Marks for each correct answer
2
3.5
5
200
Negative marking of 25%
0.5
0.875
1.25
-
- 8:35 AM IST• 29 Dec 2025
CSIR NET 2025 Answer Key LIVE: Where will the link be activated?
The NTA will activate the CSIR NET 2025 Answer Key Link for the December session at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 8:05 AM IST• 29 Dec 2025
CSIR NET 2025 Answer key LIVE: Subjects in which the exam was conducted
The CSIR NET 2025 exam was conducted on December 18 in five subjects namely
- Mathematical Sciences
- Earth, Atmospheric, Ocean and Planetary Sciences
- Chemical Sciences
- Life Sciences and
- Physical Science
- 7:13 AM IST• 29 Dec 2025
CSIR NET December Earth Science Exam Analysis 2025: Topics asked in Part B
- Paleontology basics
- Geomorphology and Stratigraphy
- Geology fundamentals, Mineralogy, petrology, structural geology
- Geochemistry and geophysics fundamentals
- Oceanography and atmospheric processes
- Remote sensing or GIS basics, etc.
- 6:41 AM IST• 29 Dec 2025
How to download CSIR NET Answer Key 2025?
- Go to official website csirnet.nta.nic.in
- On homepage, click on link for “Provisional Answer Key - CSIR NET December 2025”
- A login page will be displayed on screen
- Enter application number and password or date of birth
- View and download answer key and response sheet
- 6:03 AM IST• 29 Dec 2025
CSIR NET 2025 Answer Key expected to release Today (Dec 29): LIVE
The CSIR NET 2025 answer key is expected to be released today at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 5:13 AM IST• 29 Dec 2025
CSIR NET 2025 December session Answer Key Expected Today
The authority is expected to release soon the CSIR NET 2025 answer key on the official website at csirnet.nta.nic.in. Stay tuned for the latest live updates.
- 4:44 AM IST• 29 Dec 2025
Is CSIR NET 2025 Answer Key released?
No. The CSIR NET 2025 Answer Key for December session has not been released yet. It is expected soon.
- 10:12 PM IST• 28 Dec 2025
Is the CSIR NET 2025 Answer Key released?
No, the NTA has not yet released the CSIR NET 2025 answer key. It is expected today. Stay tuned for the latest live updates!
- 11:09 AM IST• 28 Dec 2025
Is CSIR NET 2025 Answer key published?
No. The NTA has not released the CSIR NET 2025 Answer Key. It will be released at csirnet.nta.nic.in. Stay tuned for the latest live updates!
- 10:33 AM IST• 28 Dec 2025
CSIR NET 2025 Answer key LIVE: How to Challenge it?
Candidates can follow the methods mentioned below to challenge the answer key:
- Visit at csirnet.nta.nic.in
- Click on the answer key link
- Enter the application number, password/date of birth and security pin
- Click on the Sign In button
- Click on the link available to challenge the answer key
- Select the correct answer option ID for the question ID for which the challenge needs to be made
- Click on the 'Save Your Claims' button
- Upload the document that supports the claimed answer
- Click on ‘Save Your Claims & Pay Fee’ button
- Pay INR 200 per question in online mode via credit card/debit card/internet banking
- If any question is found to be incorrect, the benefit of marks will be given to candidates who attempted that question
- In case, it is found that along with the original answer key one more option is correct, the benefit of marks will be given to candidates who attempted any one of the correct options
- 9:46 AM IST• 28 Dec 2025
CSIR NET 2025 Live: Exam Pattern (Physical Sciences)
Particulars
Part A
Part B
Part C
Total
Total Questions
20
25
30
75
Max no of questions to attempt
15
20
20
55
Marks for each correct answer
2
3.5
5
200
Negative marking of 25%
0.5
0.875
1.25
-
- 8:47 AM IST• 28 Dec 2025
CSIR NET 2025 Answer Key LIVE: Where will the link be activated?
The NTA will activate the CSIR NET 2025 Answer Key Link for the December session at csirnet.nta.nic.in. Stay tuned for the latest live updates!
The authority will release the CSIR NET answer key at csirnet.nta.nic.in. It contains correct answers for all the questions asked in the exam. Check below for more details:
Exam name |
Exam date |
Exam shift |
Exam subject name |
Exam subject code |
Question IDs |
Correct option IDs |
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The authority will release the CSIR NET 2026 provisional answer key for the June Session on the official website. Candidates can also challenge the answer key, and based on the objections received, the NTA will release the final answer key. Candidates need to pay INR 200 per question as an objection fee. This fee is non-refundable.