Eduncle posted an Article
December 29, 2020 • 10:13 am

CSIR NET Answer Key 2020, 19, 18 & 17 – Subject Wise PDF

CSIR NET Answer Key

National Testing Agency released the final CSIR NET Answer Key 2020 on 28th December 2020 for all five subjects i.e. Chemical, Earth, Life, Mathematical, and Physical Sciences as the exam was successfully conducted on 19th, 21st, 26th & 30th November 2020.

Candidates who appeared for this exam can check the answer key download procedure that we have described in this article.

Here, we have also provided the CSIR NTA NET answer keys of some previous exam sessions of Dec 2017, June 2018, Dec 2018, June 2019, and Dec 2019.

Details that we have covered in this blog are as follows -

Why It is Important to Download Answer Key?

Steps to Download Final Answer Keys

Important Points to Remember while Checking Your Response

How to Challenge CSIR NET 2020 Answer Key?

Steps to Challenge Provisional Keys

Instructions for Fee Payment

Formula to Calculate Expected Scores

Previous Year CSIR NET Answer Keys

Frequently Asked Questions



Download CSIR NET Previous 5 Papers along with the Answer Keys to analyze your preparation.



Why It is Important to Download CSIR NET Answer Key?


After appearing in the CSIR NET Exam, one of the important things is to check the answer key. Here are some of the most useful significance of downloading it –

You will get to know the correct answers of all the attempted questions.

With the help of this, you can verify the responses that you have marked in the answer sheet.

It helps to evaluated and analyze your performance in the exam.

You can raise the objection if found any discrepancy in your marked answers.

By comparing the marks against the CSIR NET Cutoff, you can get an idea about your chances of qualifying for the examination.



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Steps to Download Final CSIR NET 2020 Answer Key


Finding and downloading the correct answer key can be a tedious task for many candidates. So, to help you download the key from the official Website, we have provided the step by step procedure below.

Step-1: Visit the official website of NTA CSIR NET (

Step-2: Click on the Final CSIR NET Answer Key button.

Step- 3: Fill all your details such as application number, date of birth and security pin (shown in the box) and login to the website.

Step-4: The answer key will be displayed on your screen. Save it as a pdf.



Want Expert Assistance in CSIR NET Preparation? Join Us Now to Get Free Personalized Guidance by Subject Experts!



Important Points to Remember While Checking the CSIR NET 2020 Answer Key


When you start analyzing your performance with the help of answer key, make sure you consider the following points:

You should use the official answer key only for the correct analysis.

The score that you will calculate, will not be considered as your final score and it can vary relying on the rules and criteria decided by the CSIR officials.

If you attempt a greater number of questions than the given maximum limit (for this please check CSIR NET Exam Pattern), then only the first attempted questions will be considered for marking.

Full marks will be provided to all the candidates if a question is given wrong in the exam paper.





How to Challenge CSIR NET 2020 Answer Key?


NTA provided an opportunity to the candidates to raise the objections in the Provisional Answer Key with the help of the Response Sheet. If you find any discrepancy, then check the important steps of “How to Challenge the CSIR NET Answer Key” and raise the objection.

The last date to challenge the CSIR NET Provisional Answer Key was 5th December 2020. After accepting all the challenges from candidates and examining them carefully, the NTA releases Final CSIR Answer Key 2020.



Steps to Challenge CSIR NET Provisional Answer Key


Below we have provided the step-by-step process that will help you to submit the challenge.

Step 1 – Visit the official website of NTA CSIR NET (

Step 2 – Click on the “Display Question Paper/ Answer Key Challenge” link.

Step 3 – Now Login with your Application Number and Date of Birth.

Step 4 – After login you will see the Question IDs in sequential order.

Step 5 – The ID next to the question under the column “Correct Option” stands for the correct Answer used by NTA. If you want to challenge this question, then click on the checkbox given in the next four columns.

Step 6 – Once you choose the desired option, click on “Save your Claim” for the next step.

Step 7 – Now, all the Option IDs that you have challenged will be displayed on your screen.

Step 8 – The Supporting documents as proof should be uploaded by clicking on the “Choose File” option.

Note – All the documents should be uploaded only in PDF format.

Step 9 – Click on “Save your Claim Finally” to submit your challenges.

Step 10 – Select the mode of payment and submit the fee.



Instruction for Fee Payment


Here are some important instructions regarding fee payment. Candidates are suggested to read them carefully before challenging the CSIR NTA NET Answer Key.

Candidates will have to pay INR 1000 to challenge each question.

If the challenge is found correct, the fee will be refunded in the same account.

The payment can be made through Debit Card/Credit Card/Net Banking.



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Formula to Calculate Expected Scores


With the help of official CSIR NTA NET answer keys, candidates can get an idea about their expected scores. For this, you must know about the CSIR NET Exam Pattern & Marking Scheme of your respective subject.

Here is the formula that can be used to calculate your score –

Expected Marks = [(A)×(B)] - [(C)×(D)]

Here -

A is Number of Correct Attempts

B is Marks allocated for each correct answer

C is Number of wrong attempts

D is Marks to be deducted for each wrong answer



CSIR NET YouTube Channel


Download Previous Years CSIR NET Answer Keys


During preparation, solving CSIR NET Previous Year Papers will give you a brief idea about the paper pattern, difficulty level, type of questions, etc. And, after solving it, you must check your answers with the help of official answer keys that Eduncle has made available below.

Along with CSIR NET 2020 question paper & answer key, we are also providing the last few exam papers and their keys. You can download them from the below table.




Want to know about the difficulty level of Questions asked in exam? Download CSIR NET Previous Papers and get an overview of the paper.



Frequently Asked Questions Related to CSIR NET Answer Keys


We have compiled the frequently asked questions regarding NET CSIR Answer Key 2020. Refer to them for your queries.



Ques 1 - When will the CSIR NET Answer Key 2020 be released?

Ans – The exam conducting authority released the CSIR NET 2020 Final Answer key on 28th December 2020.



Ques 2 – How can I raise an objection against the CSIR NET answer key 2020?

Ans – To raise the objection against the provisional CSIR NTA NET answer key, you need to submit the challenge through the link provided on the official website. CSIR has set some guidelines to challenge it which you can check from – How to Challenge CSIR NET Answer Key.



Ques 3 - From where can I get the CSIR NET 2020 Answer Key?

Ans –The NTA releases the CSIR NET Answer key 2020 on the official website i.e.



Ques 4 – Will NTA declare the result based on CSIR NET Provisional Answer Key?

Ans – No, official releases the result based on Final CSIR NTA NET Answer Keys.



Ques 5 – What is the formula to calculate the scores?

Ans – You must use the correct marking scheme to calculate your scores. Above in the blog, we have provided the procedure to calculate your scores.



Ques 6 – How do I download CSIR NET Answer Key?

Ans – It's very simple. Click here to get the step-by-step procedure.



Ques 7 – What details NTA provides In CSIR NET Answer Keys?

Ans – CSIR NTA NET Answer Key contains details like question ID, correct answer ID, exam date & shift.



Ques 8 – Will NTA release the answer key in offline mode?

Ans – No, CSIR NET 2020 Answer Keys have released in online mode only.


These were the frequently asked questions of aspirants related to CSIR Answer Keys. If you have any queries apart from these, you can share them with us through the comment box below.

We will solve all your doubts as soon as possible.

You can also join India’s No.1 Learning Community for CSIR NET, where you will get doubt solution for all your exam-related queries with the help of experts from all over India. To join the community, you can download the Eduncle app now.


Thank You!!



Showing 5 comments out of 5
  • Vadde lalappa Lallu chinna
    How to start csir net june preparation as a repieater
    same also my question
  • Rakesh
    please practice question paper
  • Priya
    how to start csir net june 2020 preparation as a repieater
    Hello Jenny,
    Greetings from Eduncle!
    We would like to appreciate your efforts. You need to follow a well-planned preparation strategy. Get the experts' suggested preparatio...
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