The National Testing Agency (NTA) has released the CSIR NET Answer Key 2025 (December Session) on its portal - csirnet.nta.nic.in. The candidates can download their Subject Answer Key by logging in with the credentials. The candidates can send the objections against the incorrect answers till January 1, 2026 with the payment of INR 200 non-refundable objection fee.The CSIR NET 2025 was conducted on December 18. Scroll down for more information about the NTA CSIR NET 2025 important dates, hall ticket, syllabus, pattern, analysis, and more.
The CSIR NET 2025 December Session Provisional Answer Key OUT at csirnet.nta.nic.in. The National Testing Agency has released the CSIR NET 2025 answer key for the December 2025 Session on its portal. The candidates should note that if they are not satisfied with the answers given in the provisional answer key, they can send representation against it after paying the objection fee. The CSIR NET 2025 objection fee is INR 200 which is non-refundable. The last date to pay the objection fee is January 1, 2026. The candidates can download their CSIR NET Answer Key 2025 from the portal.
The CSIR NET 2025 was held on December 18 in two shifts. The NTA conducts the CSIR NET exam twice a year (June and December). The National Testing Agency (NTA) has been authorised by the Council of Scientific and Industrial Research (CSIR), with the task of conducting the Joint CSIR-UGC NET 2025 Examination. The NTA conduct the examination to select the candidates who are eligible as lecturers and Junior Research Fellow persons in the faculty of science. The CSIR NET 2025 exam will be held in an online mode for five subjects: Chemical Sciences, Earth, Atmospheric, Ocean and Planetary Sciences, Life Sciences, Mathematical Sciences and Physical Sciences. Candidates can read more about the CSIR NET exam including the eligibility, admit card, analysis, important dates, exam pattern, syllabus, and more.
Latest Updates:
| CSIR NET 2025 Dec Answer Key Link | https://examinationservices.nic.in/ExamSys2026/root/Home.aspx?enc=Ei4cajBkK1gZSfgr53ImFTqGsyg38PlGNCGSuvSzsiV1qebCK8HwyoyshndJPRez |
Candidates must score at least 33 percent in the general, EWS, and OBC categories and 25 percent in the SC, ST, and PwD categories for the CSIR UGC NET exam. The December session result will be released on the official website at csirnet.nta.nic.in.
Yes, category affects the CSIR NET cutoff. The CSIR NET cutoff marks vary by category and subject. As per the official notification, candidates must score at least 33% in the General, EWS, and OBC categories and a minimum of 25% in the SC, ST, and PwD categories to qualify for both Fellowship and Lectureship/Assistant Professor.
- CSIR NET 2025 Exam Highlights
- CSIR NET 2025: Important Dates
- CSIR NET 2025 Provisional Answer Key OUT
- CSIR NET 2025 Dec Analysis
- CSIR NET 2025 Admit Card
- CSIR NET 2025 Exam Schedule & Shift-Timings
- CSIR NET 2025 Dec Notification
- CSIR NET 2025 Dec Application Form Released
- CSIR NET 2025 Eligibility Criteria
- CSIR NET 2025: Exam Pattern
- CSIR NET 2025 Syllabus
- CSIR NET 2025 Cut-Off
- CSIR NET 2025 Final Answer Key
- CSIR NET 2025 Result
CSIR NET 2025 Exam Highlights
Candidates can check below for an overview of the CSIR UGC NET exam, including the conducting body, exam mode and frequency, number of candidates, contact details and more.
| Exam Features |
Exam Particulars |
|---|---|
| Exam Name |
CSIR NET (Council of Scientific and Industrial Research National Eligibility Test) |
| Conducting Body |
National Testing Agency (NTA) |
| Exam Level |
National |
| Exam Frequency |
Twice a year |
| Mode of Exam |
Online - CBT (Computer-Based Test) |
| Exam Fees |
|
| Pattern of Examination |
Objective Type |
| Exam Duration |
180 minutes (3 hours) |
| Exam Time |
Shift 1 - 09:00 am to 12:00 noon |
| No. of Papers and Total Marks |
|
| Language/Medium of Exam |
English and Hindi |
| Exam Purpose |
To determine the eligibility of candidates for Junior Research Fellowship (JRF) and for Lectureship (LS)/ Assistant Professor in the universities and colleges of India |
| Official Website |
csirnet.nta.nic.in |
CSIR NET 2025: Important Dates
Candidates can check below for CSIR NET important dates for December session.
| Events |
Dates |
|---|---|
| CSIR NET application form dates |
25-Sep-2025 to 24-Oct-2025 27-Oct-2025 |
| Last date of payment of CSIR NET 2025 application fee |
25-Oct-2025 28-Oct-2025 |
| Availability of CSIR NET 2025 correction window |
27-Oct-2025 to 29-Oct-2025 30-Oct-2025 to 1-Nov-2025 |
| CSIR NET 2025 Dec City Slip |
8-Dec-2025 |
| CSIR NET 2025 Dec Admit Card |
14-Dec-2025 |
| CSIR NET 2025 Dec Exam |
18-Dec-2025 |
| CSIR NET 2025 Provisional Answer key |
30-Dec-2025 |
| CSIR NET 2025 Provisional Answer Challenge window |
30-Dec-2025 to 01-Jan-2026 (Till 11.00 PM) |
| CSIR NET 2025 Final Answer Key |
to be updated here |
| CSIR NET 2025 Dec Result |
to be updated here |
| CSIR NET 2025 Dec Cut Off |
to be updated here |
Also Read: CSIR NET Syllabus 2025 in Detail
CSIR NET 2025 Provisional Answer Key OUT
The authority has released the CSIR NET Provisional Answer Key on its official website - csirnet.nta.nic.in. It has all answers to the questions asked in the CSIR NET exam 2025. Candidates can check their answers and caloculate their scores. The CSIR NET 2025 Answer Key will be released in two stages: first, the Provisional Answer Key and second, the Final Answer Key.
Methods to Download The CSIR NET Provisional Answer Key 2025
Candidates can check below the methods to download the answer key:
- Visit at csirnet.nta.nic.in.
- Check the CSIR NET Answer Key Link 2025 on the homepage or in the Latest Update section.
- Click on the link and Proceed.
- Choose the CSIR NET exam session and the subject for which you appeared in the exam.
- The Answer key will be displayed on the screen.
- Download it and calculate your probable scores.
CSIR NET 2025 Dec Provisional Answer Key Notice PDF
CSIR NET 2025 Dec Analysis
The CSIR NET exam analysis for shift 1 is provided here based on the students' responses. As per the students' the Life Science exam overall difficulty is Moderate to Tough. Development Biology and Ecology was very easy. Plant Physiology was tough.
Also Read:
CSIR NET 2025 Dec Analysis (Shift 2): Check Maths, Chemical & Physical Science Difficulty Level
CSIR NET 2025 Dec Life & Earth Science (Shift 1) Question Paper Analysis
CSIR NET 2025 Admit Card
The National Testing Agency (NTA) released the CSIR NET call letter 2025 at csirnet.nta.nic.in. The admit card has details of the examination like the examination centre, exam date, schedule, time of examination, etc. Check below the methods:
- Visit at csirnet.nta.nic.in
- On the homepage, click on the CSIR-UGC NET December Hall Ticket 2025 link
- A new webpage will open.
- Candidates should enter the required details to download the admit card
- If everything is done perfectly, the candidate’s admit card will be displayed on the screen
- Download it and print it out for future use
CSIR NET 2025 Exam Schedule & Shift-Timings
The NTA released the exam schedule and shift timings for the December session on the official website.
| 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 |
CSIR NET 2025 Dec Notification
The CSIR NET notification 2025 released for the Dec session at csirnet.nta.nic.in on September 25. The notification consists of the important details of the exam like:
- Application process
- Exam dates and schedule
- CSIR NET eligibility criteria
- CSIR NET exam pattern and syllabus
- CSIR NET qualifying marks and cut-off criteria
- Validity of CSIR NET
- Exam centres list
- Admit card
- Verification of eligibility, etc.
Download CSIR NET 2025 Dec notification pdf: Download Here
Download CSIR NET 2025 Dec Information Bulletin: Download Here
Also Read: CSIR NET Exam Date 2025
CSIR NET 2025 Dec Application Form Released
The NTA released the CSIR NET 2025 application form for the Dec session along with the Notification. Candidates could apply by registering and logging in through the required credentials. The Dec session application dates were September 25 to October 27. Check below methods:
- First, candidates are required to get themselves registered online
- Login with the credentials used during the registration process
- Fill out the application form available with the application number & password shared on your email ID and phone number
- Upload the scanned documents as per requirements. The instructions for the same will be available there
- After submitting the application form, pay the application fee through the online payment gateways available
CSIR NET 2025 Eligibility Criteria
The eligibility criteria of CSIR NET 2025 plays a crucial role before submitting out the CSIR UGC NET application form. It is also important for a candidate to meet the CSIR NET eligibility. If in case candidates are found ineligible by the NTA at any stage, then they will be disqualified for the exam. Therefore, it is important for a candidate to go through the CSIR NET eligibility criteria as prescribed by the NTA below. The CSIR NET Eligibility 2025 comprises the following aspects:
- Nationality
- CSIR NET Age limit
- Relaxation in upper age limit
- Educational Qualification
Nationality
Those candidates who are Indian citizens are eligible to apply for NTA CSIR NET exam.
Age Limit
JRF: Not more than 30 years as on the first day of the month in which the examination is concluded that is Dec 2025. A relaxation upto 5 years is provided to the candidates belonging to OBC-NCL/SC/ST/PwD/Third gender categories and to women applicants.
For the position of Assistant Professor or for applying for PhD programs, there is no upper age limit.
Assistant Professor: There is no upper age limit in applying for Joint CSIR UGC-NET for Assistant Professor.
Admission to PhD: There is no upper age limit in applying for Joint CSIR-UGC-NET for Admission to PhD.
Education Qualification
It is important to consider the qualification. Candidates need to possess either of the below-mentioned qualifications with at least 55 per cent marks (for General and OBC) or 50 per cent marks (for Scheduled Caste (SC)/Scheduled Tribe (ST)/Persons with Disability (PwD) candidates).
| MSc or equivalent degree |
Integrated BS-MS |
| BS (4 years) |
BE |
| BTech |
BPharma |
| MBBS |
|
On the basis of a Master’s Degree or Equivalent Degree
- Candidates who are enrolled for MSc or have completed MSc or equivalent degree/ Integrated BS-MS/ BS-4 years/ BE/ BTech/ BPharma/ MBBS as of the last date of the CSIR NET application 2025 are also eligible to apply under the Result Awaited (RA) category.
- The condition of RA category candidates is that they should complete their qualifying degree with the required percentage of marks within the validity period of two years from the date of declaration of the Joint CSIR UGC NET result failing which they shall be treated as disqualified.
On the basis of a BSc (Hons) or equivalent degree or candidates enrolled in an integrated MS-PhD program
Candidates who hold a BSc (Hons) or equivalent degree or candidates enrolled in an integrated MS-PhD program with at least 55 per cent marks (50 per cent for SC/ST/PwD candidates) are also eligible to apply for the CSIR NET exam. Also, candidates who hold an undergraduate degree will be eligible for CSIR fellowship only after getting registered for PhD/Integrated PhD course within the validity period of two years, as per the official website.
On the basis of a Bachelor’s Degree
- Those candidates who possess only a Bachelor's degree are eligible to apply for Junior Research Fellowship (JRF) only and not the Lecturership (LS)/Assistant Professor. That is, BE/ BS/ BTech/ BPharma/ MBBS final year/ result-awaited candidates are eligible to apply for JRF only. Such candidates are not eligible to apply for LS.
- BSc (Hons.) final year/Result awaited candidates are also not eligible to apply.
Others
- Candidates who possess a PhD degree and who have passed their master’s before September 19, 1991, with at least 50 per cent marks are eligible to apply for lectureship only.
- The eligibility for Lectureship/Assistant Professor of NET qualified candidates is subject to fulfilling the criteria laid down by UGC.
CSIR NET 2025: Exam Pattern
CSIR NET Exam pattern is more crucial part of the examination. The CSIR NET 2025 Question paper will be divided into three sections: Part A, B and C. All parts will consist of objective type, multiple choice questions. There will be no break between papers.
Part 'A' shall be common to all subjects. It consists of maximum of 20 questions of General Aptitude. Candidates need to answer any 15 questions for two marks each. The total marks allocated to this section shall be 30 out of 200. This part also consists of General Aptitude questions that emphasis on logical reasoning, graphical analysis, analytical and numerical ability, quantitative comparison, series formation, puzzles, teaching/research aptitude, etc.
Part B and C consist of questions based on subject chosen by candidates from the following five subjects namely Earth, Atmospheric, Ocean and Planetary Sciences, Chemical Sciences, Life Sciences, Mathematical Sciences and Physical Sciences.
The subject-wise scheme of examination is mentioned below:
Chemical Science (701)
| Particulars |
Part A |
Part B |
Part C |
Total |
|---|---|---|---|---|
| Total Questions |
20 |
40 |
60 |
120 |
| Max no of questions to attempt |
15 |
35 |
25 |
75 |
| Marks for each correct answer |
2 |
2 |
4 |
200 |
| Negative marking of 25% |
0.5 |
0.5 |
1 |
- |
Earth, Atmospheric, Ocean and Planetary Sciences (702)
| Particulars |
Part A |
Part B |
Part C |
Total |
|---|---|---|---|---|
| Total Questions |
20 |
50 |
80 |
150 |
| Max no of questions to attempt |
15 |
35 |
25 |
75 |
| Marks for each correct answer |
2 |
2 |
4 |
200 |
| Negative marking- 25% in Part A & B and 33% in Part C |
0.5 |
0.5 |
1.32 |
|
Life Sciences (703)
| 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 |
- |
Mathematical Sciences (704)
| 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 |
- |
Physical Sciences (705)
| 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% for Part A, B and C |
0.5 |
0.875 |
1.25 |
- |
CSIR NET 2025 Syllabus
Candidates can check below the CSIR NET Syllabus 2025 for all the five subjects namely Earth, Atmospheric, Ocean and Planetary Sciences, Chemical Sciences, Life Sciences, Mathematical Sciences, and Physical Sciences.
CSIR NET 2025 Part A Syllabus
The syllabus for CSIR NET Part A is same for all five subjects. Part A contains questions related to General Science, Quantitative Reasoning, and Analysis and Research Aptitude. Scroll down for Part A syllabus.
Reasoning: Analytical Reasoning, Syllogisms, Analogies, Directions, Coding-Decoding, Classification, Alphabet Series, Symbols and Notations
Similarities and Differences, Number Series, Blood Relationships, Arrangements, Statements, Data Sufficiency, Non-verbal Reasoning, Visual Ability, Graphical Analysis, Data Analysis, etc.
Quantitative Aptitude: Simplifications, Number System, Average, Algebra, Percentage, Time & Work, Simple & Compound Interest, Time & Speed, HCF, LCM Problems, Area, Profit & Loss, Bar Graph, Pictorial Graph, Pie Chart, Ratio & Proportion, Permutation & Combination, etc.
Data Interpretation & Graphical Analysis: Mean, Median, Mode, Measures of Dispersion, Graphical Analysis: Bar Graph, Line Graph, Pie-Chart and Tabulation, etc.
CSIR NET Syllabus: Part B & C
Scroll down for a detailed syllabus, which will help candidates score better in the CSIR NET exam and also provide better clarity for the topics that are required to be covered.
Earth Sciences: Geology, Applied Geology, Physical Geography, Geophysics, Meteorology, Ocean Sciences, etc.
Chemical Sciences: Inorganic Chemistry, Physical Chemistry, Organic Chemistry, Interdisciplinary topics, etc.
Life Sciences: Molecules and their Interaction, Cellular Organization, Developmental Biology, Diversity of Life Forms, Cell Communication and Cell Signaling, Ecological Principles, etc.
Mathematical Sciences: Analysis Linear Algebra, Complex Analysis Algebra, Topology, Ordinary Differential Equations (ODEs), Partial Differential Equations (PDEs), Numerical Analysis, Calculus of Variations, Linear Integral Equations, Classical Mechanics, Statistics, Exploratory Data Analysis, etc.
Physical Sciences: Mathematical Methods of Physics, Classical Mechanics, Electromagnetic Theory, Quantum Mechanics, Thermodynamic and Statistical Physics, Electronics and Experimental Methods, Atomic and Molecular Physics, Condensed Matter Physics, Nuclear and Particle Physics, etc.
Also Read: CSIR NET 2025 Answer Key
CSIR NET 2025 Cut-Off
The National Testing Agency (NTA) will announce the CSIR NET Subject-wise Cut-off and the result for the December session. Candidates can download the subject-wise CSIR NET Cut-Off through the official website. The subject-wise cut-off for CSIR NET will also be shared here once it is released.
How to Check CSIR NET Cutoff 2025?
Candidates can follow the below-mentioned methods:
- Visit at csirhrdg.res.in
- Click on the 'Cut-off' link available under the News & Announcement section
- Download and save the CSIR NET cutoff list
CSIR UGC NET Dec Cut-off 2025 Official PDF: to be updated here
CSIR UGC NET June Cut-off 2025 Official PDF: Download Here
CSIR NET 2025 Final Answer Key
The CSIR NET 2025 Final Answer Key will be released by the authority after considering all the challenges raised by the candidates who appeared in the exam.
Check CSIR NET 2025 Dec Final Answer Key PDF: to be updated here
Also Read: CSIR NET Exam Centres List
CSIR NET 2025 Result
The CSIR NET Result 2025 for the Dec session will be announced at csirnet.nta.nic.in. Candidates who will appear for the exam can check the result by logging in with the application number and date of birth. The CSIR NET e-certificate 2025 will be distributed based on the final results declared by the authority.
Methods To Check CSIR NET 2025 Result
Scroll down to know about it:
- Open the csirnet.nta.nic.in
- Click on the 'CSIR UGC NET 2025 Dec Result' link
- Enter the following details: Application number, Date of birth & Security pin as shown in the image
- Click on Submit
- View and download the scorecard
CSIR UGC NET Dec Result 2025 Download Link- to be updated here
Read More:
CSIR NET Preparation Tips 2025
CSIR NET 2025 Certificate
The applicants who pass the exam and become eligible for JRF and lectureship are given CSIR NET Certificate.
Download the CSIR NET Certificate 2025
- Visit at csirnet.nta.nic.in
- Click 'Joint CSIR UGC NET', enter the captcha code and submit
- Enter your Roll number and Date of Birth
- Download and Save the PDF
Read More:

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Student Forum
Answered a week ago
The authority is expected to soon release the CSIR NET 2025 December session result on the official website at csirnet.nta.nic.in. It will be released in the form of PDF. It also consists of the roll numbers and rank of candidates who qualified the exam.
V
Contributor-Level 6
Answered 2 weeks ago
List of some the books that are helpful for the CSIR NET Earth Science preparation are mentioned below:
- Environmental Geology by Edward A Keller
- Structural Geology by Haakon Fossen
- Sedimentology and Stratigraphy by Gary Nichols
- Principles of Sedimentology and Stratigraphy by Sam Boggs Jr.
- Vertebrate Pale
N
Contributor-Level 6
Answered 2 weeks ago
The list of some of the important topics of Mathematical Science paper is mentioned below:
- Analysis
- Numerical & Complex Analysis
- Calculus of Variations
- Linear Integral Equations
- Algebra
- Ordinary Differential Equations (ODEs)
- Descriptive Statistics, Exploratory Data
- Classical Mechanics
S
Contributor-Level 6
Answered 2 weeks ago
The CSIR NET Physical Science Paper consists of the important topics as mentioned below:
- Mathematical Methods of Physics
- Classical Mechanics
- Thermodynamic and Statistical Physics
- Electromagnetic Theory
- Quantum Mechanics
- Electronics and Experimental Methods
M
Contributor-Level 6
Answered 2 weeks ago
Topics that are covered in the CSIR NET Life Science exam are listed below:
- Molecules and their Interaction Relevant to Biology
- Cellular Organization
- Cell Communication and Cell Signaling
- Developmental Biology
- System Physiology – Plant
- System Physiology – Animal
- Fundamental Processes
- Ecological Principles
- Ev
C
Contributor-Level 6
Answered 2 weeks ago
Officially, the CSIR NET Syllabus is available on the official portal at csirhrdg.res.in. It is available subject-wise in the form of PDF. Candidates can downlaod by visiting the official website. The CSIR NET syllabus is also available on this page itself.
I
Contributor-Level 6
Answered 3 weeks ago
Yes, the NTA released the CSIR NET 2025 Answer Key on its portal. The candidates were required to login with their credentials to download their subject answer key. The last date to send objections was January 1, 2026.
M
Contributor-Level 6
Answered a month ago
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.
I
Contributor-Level 6
Answered a month ago
The CSIR NET 2025 exam was conducted on December 18 in two shifts. As per the schedule released, the Mathematical Science exam was held from 3 pm to 6 pm on Dec 18.
I
Contributor-Level 6
Answered a month ago
The CSIR NET 2025 Notification was released on September 25 in the form of PDF at csirnet.nta.nic.in. The notification conists if the important information related to the exam like exam dates, syllabus, pattern of an exam, etc.
G
Contributor-Level 6

Yes, the NTA released the CSIR NET 2025 Answer Key on its portal. The candidates were required to login with their credentials to download their subject answer key. The last date to send objections was January 1, 2026.