JV’s IAS Academy is the first one to provide the answer key & analysis of UPSC Civil Services Preliminary Examination, 2020 (Set B). Aspirants can check the UPSC CSP answer key 2021 of all sets of question papers which will include Series A, Series B, Series C, and Series D. The answer key will provide correct answers to all the questions asked in the UPSC prelims 2021 examination in a tabular format. We expect the Cut off Prelims 2021 to be between 90-95. However, This is just an intelligent guess from

We will try our best to provide the most authentic answers for UPSC prelims paper 2021. You will also be provided the 

  • Explanations for the answers and
  • The trigger factors behind the question.

UPSC Prelims Answer Key 2021 (Set  A,B,C,D): Click here to download


The Union Public Service Commission (UPSC) conducts the Civil Services exam every year to recruit Indian Administrative Services (IAS), Indian Police Services (IPS) and Indian Foreign Service (IFS) officers at all India level.

The UPSC Civil Services Examination is held in 3 stages: Preliminary, Mains and Interview. Candidates need to qualify all the three stages to get recruited in the coveted Civil Services.

The Preliminary Examination shall comprise two compulsory papers of 200 marks each.The questions will be of multiple choice, objective type. The examination format is given below:

  1. Paper I - (200 marks) Duration: Two hours
  2. Paper II- (200 marks) Duration: Two hours 

UPSC has scheduled the Civil Services preliminary exam on October 10, 2021. UPSC officially releases answer keys for UPSC Civil services Preliminary examination after completion of the recruitment process.

Calculate your score 

Aspirants can also calculate their UPSC Prelims score with the help of JV’s answer keys. 

  • In both Paper 1 and CSAT papers (Paper-II), there is negative marking. 

  • Every question carries two marks; so if an aspirant answers a question correctly, he/she will be rewarded with two marks. 

  • For every incorrect answer, UPSC deducts one-third of the 2 marks allotted to question ie. 0.67 marks.

  • For example, if an aspirant attempts 85 questions out of which 60 questions are correct and 25 are wrong.

  • Then his/her expected score would be (60×2 – 25×0.67), i.e., 120 – 16.75 = 103.25 marks.   

UPSC Prelims 2020 cutoff marks

  • UPSC Prelims cutoffs will be decided on the basis of the marks obtained in UPSC prelims Paper 1 only. 

  • CSAT paper is of qualifying nature and it’s marks are not accounted for in the cut off. Only 33% marks are required to qualify CSAT paper. So you should make sure that you are getting the stipulated marks in the CSAT paper.  

  • Also, the UPSC Cut Off varies depending on the category of the candidates as well.

  • Candidates can check the expected UPSC Cut Off 2019 at the linked article.

  • UPSC Prelims 2021 cut off will be posted here. 

Candidates should calculate their expected marks based on the Answer Key, and if their marks are close to the average from previous years UPSC Prelims cutoffs, then they should start with the Mains preparation. Please post your expected Marks in the comments section below in order to gauge your performance.

Section wise Analysis of UPSC CSE PRELIMS 2021

In Prelims 2021, UPSC asked more questions from Polity approximately 16 questions have been asked directly from polity. 

  • The paper touched the usual conventional areas like Preamble, Fundamental Rights, DPSP, Basic Structure, Union Government, etc. Polity also influenced some questions in current affairs. 
  • For example, questions on MPLADS and Parliament Session were asked. Interestingly, UPSC asked more questions needing conceptual understanding this year. For example interpretation of Constitutional Government, Parliamentary Democracy, Gandhism, Marxism, etc found space. Overall the level of polity was easy to moderate.


  • Amid so much news around financial crises, Current affairs was bound to influence the Economy section of the paper. 
  • This year, around 14 questions were asked directly from economics and Indian Economy. Some questions like questions on Gold Tranche, FDI, TRIMS, etc were direct concept based questions. 
  • While some questions on monetary policy of RBI, role of cooperative Banks, etc were influenced by current happenings. 

Overall, the Economy section too was from easy to moderate.


  • Science section as usual was dominated by Science and Technology and that too very much influenced by Current Affairs. This year around ten questions were there from Science with eight in Science and Technology. 
  • It seems UPSC has taken more interest in application of technology. For example, applications of Artificial Intelligence, Blockchain Technology, Nanotubes, etc were asked. 

Overall this section could have been handled easily, if an aspirant has covered both static and current affairs smartly.


  • In History, domination of modern India was not there as it used to be. The share has been taken by Ancient, Medieval and Culture. In History, 18 questions have been asked with around 9 from the Ancient, Medieval and Culture part. Overall it was a mixture of easy, moderate and tough questions.
  • Geography being the favourite domain of UPSC is dominated by Agriculture this year. Around 12 questions were there from Geography and Agriculture. In-fact this year some core technical questions have been asked by UPSC.
  • For example, types of soil, climate and fertiliser of crops became part of three different questions. 
  • Atlas based questions influenced by news were also there. Overall this section could have been done if someone has covered agriculture part of Geography very well.
  • Environment the pet topic of UPSC maintained its position. It notched around 17 questions. Questions were mostly based on facts and knowledge with respect to pollutants, National Parks, Bio Fuels, etc. Overall an aspirant with good clarity and good in memorising facts could make intelligent guesses through elimination.
  • Current Affairs, where UPSC gives surprises, was the same this year. Around 15 questions were there from Current Affairs. At times it becomes difficult to split static parts from Current Affairs. For example, most of the questions in the Economic Section and Science and Technology have been asked under the influence of news but have not crossed the boundary of static syllabus. 
  • The Government Scheme was a miss with very few like one on the Kisan Credit Card. Places in news found its due space and COVID influenced questions like on animal cells and vaccines. 
  • Reports and agencies couldn’t find its conventional position.