CSIR NET Final Answer Key 2025 OUT: December Subject-Wise Answer Key Download Link

Council of Scientific and Industrial Research National Eligibility Test 2026 ( CSIR NET )

Shikha Goyal
Updated on Jan 30, 2026 16:03 IST

By Shikha Goyal, Assistant Manager

The authority released the CSIR NET 2025 Final Answer Key for the December session in the form of PDF. It was released on January 30 on the official portal at csirnet.nta.nic.in. Earlier, the provisional answer key was released on December 30. The objection window was closed on January 1. Candidates can download their final answer key PDF from the direct link provided below.

 After releasing the final answer key, the CSIR NET Result & Cut-off was announced. Scroll down for more detail about the CSIR NET 2025 answer key.

Latest News & Updates:

CSIR NET Final Answer Key 2025 OUT For December Exam; Download PDF at csirnet.nta.nic.in

Table of contents
  • CSIR UGC NET Final Answer Key 2025
  • CSIR NET Exam Dates 2026
  • How to Download CSIR NET Dec 2025 Final Answer Key?
  • How to Download CSIR NET Answer Key 2025?
  • How to Challenge CSIR NET Answer Key 2025?
  • Details Mentioned on CSIR NET Answer Key 2025
  • How to Calculate Scores using CSIR NET Answer Key 2025?
  • CSIR NET Answer Key 2025 FAQs
View More
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CSIR UGC NET Final Answer Key 2025

The NTA released the CSIR NET 2025 Dec session Final Answer key at csirnet.nta.nic.in. Candidates can download the Final Answer key PDF below. The CSIR UGC NET Answer Key for the Dec session has been released in a PDF format and candidates can download the CSIR NET Answer Key PDF through the link provided below in this article.

Candidates who will not be satisfied with the answers mentioned in the provisional answer key raised objections about the answer key against in a particular time frame. Candidates need to pay INR 200 per question to submit their objections against the CSIR NET Answer Key 2025. The CSIR NET answer key will be released in two phases - Provisional and Final. The CSIR NET Provisional Answer Key 2025 was released along with the question paper and marked responses. After analysing the representations of the candidates, the NTA released the CSIR NET final answer key. 

 CSIR NET 2025 Dec Final Answer Key PDF: Download Here 

 

 

 

Q&A Icon
Commonly asked questions
Q:   Where will the CSIR NET final answer key be released?
A: 

The CSIR NET 2025 final answer key has been released on the official website at csirnet.nta.nic.in. After analysing the representations of the aspirants, the NTA released the CSIR UGC NET final answer key for the Dec session. The answer key has been released in two phases- Provisional and Final. 

Q:   What information is provided on the CSIR NET answer key?
A: 

The authority released 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

-

View answer key

CSIR NET Exam Dates 2026

Take a look at the table below for the complete schedule of CSIR NET 2026 exam

DatesPast Exam Dates
30 Jan ' 26

CSIR NET 2025 Dec Final Answer Key

30 Jan ' 26

CSIR NET 2025 Dec Result

30 Dec ' 25

CSIR NET 2025 Dec Provisional Answer Key

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How to Download CSIR NET Dec 2025 Final Answer Key?

CSIR NET 2025 final answer key pdf is available for download at csirnet.nta.nic.in. Candidates can download CSIR NET 2025 final answer key pdf for all subjects online by following manner:

  • Visit at csirnet.nta.ac.in
  • On the homepage, click on the CSIR December 2025 Final Answer Key
  • A PDF file with correct responses will be displayed on the screen
  • Download pdf, check answers and save it for further references
Q&A Icon
Commonly asked questions
Q:   Which books are useful for life science preparation?
A: 

Candidates can check below the list of Life Science books that will help in the preparation:

  • Life Science by Ashish Nagesh, Quaisher J. Hossain
  • Life Sciences Books (Vol 1) by Dr. Poonam Sharma
  • Plant Physiology by Taiz and Zeiger
  • CSIR UGC NET Life Sciences by Trueman’s Publication
  • Microbiology by Prescott
  • Life Sciences Fundamentals and Practice Part 1 & 2 by Pranav Kumar
  • Fundamentals of Life Sciences Volume  I and Volume II by Rupendra Singh
Q:   What are the topics to revise in the CSIR NET Chemical Science?
A: 

Some of the topics that a candidate can revise in the CSIR NET Chemical Science subject:

Organic Reactive Intermediates: Carbocation, Carbanions, Free Radicals, Benzynes
Stereochemistry: Stereogenicity, Stereoselectivity, Enantioselectivity
Organic Reaction Mechanisms 
Pericyclic Reactions
Structure Determination of Organic Compounds
Asymmetric Synthesis, Determination of Enantiomeric and Diastereomeric Excess
IUPAC Nomenclature
Concepts in Organic Synthesis
Chemistry of Natural Products, etc.

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How to Download CSIR NET Answer Key 2025?

The provisional answer key has been released, candidates can download it for the December session and raise their objections, if any, in an online mode. Candidates can check their answer key by using their login credentials. Check below the methods to download the Provisional Answer Key for the CSIR NET exam.
  • 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

Direct Link to download the CSIR NET 2025 Dec Answer Key

Read More:

CSIR NET Syllabus in Detail

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Commonly asked questions
Q:   Is the CSIR NET 2025 Dec Provisional Answer Key released?
A: 

Yes. The NTA has released the CSIR UGC NET 2025 Provisional Answer Key for the December session. Candidates can download it by visiting the official portal or via a direct link provided on this page. They required login credentials to check the answer key.

Q:   What is the date for CSIR NET June 2026 exam?
A: 

The June session exam date for the CSIR NET 2026 has not been released yet. It will be conducted in two shifts. The whole exam schedule will be released by the authority. It will be announced at csirnet.nta.nic.in.  

Q:   Is the CSIR NET 2026 Answer Key OUT?
A: 

No, the NTA will release the CSIR NET 2026 Answer Key on its official portal. The candidates will be required to login with their credentials to download their subject answer key. 

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How to Challenge CSIR NET Answer Key 2025?

In case, any candidate is not satisfied with the given answer for any question, he or she can challenge it. However, it may be noted that for each challenged question/answer, candidates have to pay a fee of INR 200 in online mode. 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

As per the notification released, the processing fee may be paid using Debit/Credit Card/Net Banking. No challenge will be entertained without receipt of the processing fee. The fee towards the challenge will not be accepted through any other mode.

Q&A Icon
Commonly asked questions
Q:   What is the objection fee for CSIR NET 2026 Answer Key?
A: 

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. 

Q:   What are CSIR NET subjects?
A: 

The CSIR NET exam consists of five subjects some of them are Maths, Physical Science, Chemical Science, etc. Part A in the exam is common for all candidates and Part B and C is subject-specific. Candidates need to select one subject and prepare well to clear the examination.

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Details Mentioned on CSIR NET Answer Key 2025

The CSIR NET answer key released separately for each subject. The final answer key will be released after considering objections against the provisional answer key. CSIR NET exam December answer key consists of correct answers for all the questions asked in the exam. It contains the following details.

Exam name

Exam date

Exam shift

Exam subject name

Exam subject code

Question IDs

Correct option IDs

-

Also Read: CSIR NET Cut Off

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Commonly asked questions
Q:   Is CSIR NET 2026 Provisional Answer Key released?
A: 

No. The CSIR NET Provisional Answer Key for the June Session will be released after the conduction of an exam at csirnet.nta.nic.in. A direct link will also be provided on this page once it is announced. The answer key objection raising dates will also be mentioned in the official notice.

Q:   What is the full form of CSIR NET?
A: 

The CSIR NET stands for the Council of Scientific and Industrial Research National Eligibility Test. It determines the eligibility of Indian nationals for the 'award of Junior Research Fellowship and appointment as Assistant Professor.' Also, appointment as 'Assistant Professor and admission to Ph.D.' and 'admission to Ph.D. only' in several Indian universities and colleges.

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How to Calculate Scores using CSIR NET Answer Key 2025?

The CSIR NET exam is conducted twice in a year. Candidates are advised to check all CSIR UGC NET answers given in the key carefully and calculate the scores correctly. 

Chemical Sciences Scores

Candidates can calculate it through the answer key in the following manner.

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

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

Life Sciences Scores

Candidates can calculate it through the answer key in the following manner.

CSIR NET Life Science Paper Parts

Marks Allotted for Each Question 

Marks Deducted for Each Question

A

+2

-0.5

B

+2

-0.5

C

+4

-1

Mathematical Sciences Scores

Candidates can calculate it in the following manner.

CSIR NET Mathematical Science Paper Parts

Marks Allotted for Each Question 

Marks Deducted for Each Question

A

+2

-0.5

B

+3

-0.75

C

+4.75

0

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

Also Read: CSIR UGC NET Exam Pattern 

Q&A Icon
Commonly asked questions
Q:   Can I clear CSIR NET in 3 months?
A: 

Yes. Candidates clear the CSIR UGC NET exam in three months. But to pass the exam proper strategy is required. They make study plans, do revisions, solve question papers, practice tests, etc. If a candidate study properly then nothing is impossible to crack. 

 

Q:   What is the marking scheme of CSIR NET Chemical Science subject?
A: 

Candidates can calculate the CSIR NET Chemical Sciences scores through the answer key in the following manner.

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

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CSIR NET Answer Key 2025 FAQs

Candidates can read the CSIR NET Answer Key 2025 FAQs below.

Q&A Icon
Commonly asked questions
Q:   Where can a candidate enroll for availing CSIR Fellowship or Associateships?
A: 

Officially it is mentioned that CSIR Fellowships or Associateships are tenable in universities, IITs, postgraduate colleges, government research establishments including those of CSIR, R&D establishments of recognised public or private sector industrial firms, and other recognised institutions.

Q:   Is the CSIR NET 2026 notification for June session released?
A: 

No. The CSIR NET is a prestigious examination conducted by the National Testing Agency twice a year. The CSIR NET 2026 notification for the June session will be released at csirnet.nta.nic.in.  

Q:   Can I clear CSIR NET in 3 months?
A: 

Yes. Candidates clear the CSIR UGC NET exam in three months. But to pass the exam proper strategy is required. They make study plans, do revisions, solve question papers, practice tests, etc. If a candidate study properly then nothing is impossible to crack. 

 

Q:   What information is provided on the CSIR NET answer key?
A: 

The authority released 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

-

Q:   What is the valid period of the qualifying certificate of Assistant Professor?
A: 

As per the information bulletin, there is no end period for the validity of the qualifying certificate of Assistant Professor. 

Q:   What are CSIR NET subjects?
A: 

The CSIR NET exam consists of five subjects some of them are Maths, Physical Science, Chemical Science, etc. Part A in the exam is common for all candidates and Part B and C is subject-specific. Candidates need to select one subject and prepare well to clear the examination.

Q:   Can a candidate apply for more than one subject in the CSIR NET exam?
A: 

No, a candidate cannot apply for more than one subject in the CSIR NET exam. Candidates can only apply for one subject as per the exam cycle. 

Q:   Should a candidate rely on books or online resources for CSIR NET Preparation 2026?
A: 

Candidates should follow a balanced approach. No doubt books help in conceptual clarity, and a candidate can study in detail. On the other hand, online platforms provide lectures through video, have updated notes, cover current affairs as well, etc. 

Q:   What is the upper age limit to apply for the CSIR NET exam?
A: 

As per the information bulletin, the upper age limit for the CSIR NET exam should not be more than 30 years as on the first day of the month in which the examination is concluded. A relaxation of upto 5 years is provided to the candidates belonging to OBC-NCL (as per the Central list of OBC) /SC/ST/PwD/PwBD/Third gender categories and to women applicants.

Q:   What is the validity of the CSIR NET 2026 certificate?
A: 

The CSIR NET 2026 certificate is valid for lifetime for Assistant Professor. On the other hand, the award of JRF is for a fixed tenure and does not imply an assurance or guarantee for subsequent employment. The CSIR NET JRF certificate is valid for two years from the date mentioned on the certificate. 

Q:   Is the CSIR NET 2025 Dec Provisional Answer Key released?
A: 

Yes. The NTA has released the CSIR UGC NET 2025 Provisional Answer Key for the December session. Candidates can download it by visiting the official portal or via a direct link provided on this page. They required login credentials to check the answer key.

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CSIR NET Exam

Student Forum

chatAnything you would want to ask experts?
Write here...

Answered 3 days ago

Generally, the CSIR NET Chemical Science exam is considered to be moderate to difficult level of difficulty. It is crucial for the candidates to have clear understanding about the topics asked in the Earth Science exam.

I

Ishita Kaur

Contributor-Level 6

Answered 3 days ago

Candidates who are preparing for the CSIR NET Earth Science exam need to make proper strategy, understanding of the core concept is also important including in Geography, Physical Geography, Oceanography, etc. It is also crucial to analyze the syllabus thoroughly, solve previous year question papers

...Read more

S

Satyendra Garg

Contributor-Level 6

Answered 3 days ago

As per the cutoff trends and normalization process, candidates should aim to achieve at least 100 marks out of 200 to clear or meet the benchmark for the CSIR NET Life Science exam. For candidates who want to score for JRF then 110 or above is considered to be a good target. 

S

Shikha Goyal

Contributor-Level 10

Answered 3 days ago

The CSIR NET exam consists of three parts in the examination. Part A is common to everyone that is General Aptitude where as Part B and C is based on the post graduation subject any one of five subjects namely Chemical Sciences, Earth Sciences, Life Sciences, Mathematical Sciences and Physical Scien

...Read more

V

Virajita Shukla

Contributor-Level 6

Answered 3 days ago

The NTA is expected to soon release the CSIR NET 2026 Syllabus on the official website at csirnet.nta.nic.in along with the notification. It is expected in March 2026. 

K

Kritika Sharma

Contributor-Level 6

Answered 6 days ago

The CSIR NET 2026 result for the June session is expected to be released in July or early August 2026. It will be released on the official portal at csirnet.nta.nic.in. Officially the exam date has not been released yet. 

G

Gunjan Majumder

Contributor-Level 6

Answered 6 days ago

The NTA is expected to release the June session CSIR NET 2026 application form in March 2026 at csirnet.nta.nic.in. The application window will be open for a limited time period. Candidates need to submit their form online in the given timeline. Without submitting the form, candidate will not be abl

...Read more

N

Nitesh Pruthi

Contributor-Level 6

Answered 6 days ago

The CSIR NET 2026 June session registration is expected to begin in March 2026. The application link will be activated along with the release of the notification. Candidates need to submit their online form to appear for the exam.

S

Shikha Shukla

Contributor-Level 6

Answered 2 weeks ago

Candidate can carry valid photo ID proof including Aadhaar, PAN, Passport, Driving License etc. any of it along with the admit card for the CSIR NET exam.

V

Virajita Shukla

Contributor-Level 6

Answered 2 weeks ago

The CSIR NET 2026 June session exam date has not been released yet. The Mathematics subject admit card will be published a few days before the examination date. It will be released on the official portal at csirnet.nta.nic.in. 

G

Gunjan Majumder

Contributor-Level 6

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