Adhyayanam Academy


Union Public Service Commission (UPSC) conducts the Civil Services Examination to select the candidates for the prestigious Civil Services under the Government of India. The exam is considered one of the toughest examinations around the world. To ace the exam, it is important to understand what is expected of you. In the following pages, we have compiled the basic information which should come in handy for your preparation.


CSE 2021 NOTIFICATION(Click here)

CSE 2021 Eligibility

  • Nationality: For IAS, IPS and IFS, only Indian citizens can be selected. The rest of the services allow candidates from other areas also like Nepal, Bhutan etc.
  • Number of Attempts: All candidates are allowed six attempts at the UPSC examination. Exceptions to this rule are mentioned in the below table.
  • An attempt is not counted if the candidate fails to appear at both sittings of the Prelims exam. However, if you attempt any one exam of the CSE prelims i.e. General Studies 1 or General Studies 2, then, it will be counted as an attempt at the Examination.
  • Age Limit: 21 years to 32 years. The cutoff date is considered as the 1st of August of that year. However, certain relaxations are allowed in age limit as given below:
CategoryRelaxation (Number of Years)Number of Attempts
Scheduled Caste Schedule Tribe(SC,ST,OBC)5 yearsUnlimited
Other Backward Classes (excluding creamy layer)3 years9
Defence Service Personnel(disability due to certain reasons)3 years-
Ex-Servicemen (with 5 years service)5 years-
Persons with Benchmark Disabilities10 years9


  • List is not exhaustive. Kindly refer to the notification for all details.
  • Candidates belonging to more than one category would be eligible for cumulative relaxation as per the prevailing norms. For instance, an SC candidate with Benchmark Disabilities may be eligible for 5+10 i.e. 15 years relaxation.

Education: A degree from any recognized university:

  • Candidates appearing in their final year/semester examination are eligible to appear in the Prelims exam, provided they complete their degree before Detailed Application Form (DAF) for Mains is filled.

Other important points:

  • A candidate already allotted IAS or IFS service is not allowed to attempt the examination. Such a candidate must resign from the service before making another attempt at the exam.
  • An IPS officer can attempt the examination but is not allowed to choose IPS again if qualified again.

CSE 2021 Exam Pattern

Civil Services exam will be conducted in three phases:
  1. Preliminary Exam: The exam will have Objective questions with Multiple Choice for the answers, out of which one would be the correct answer. Preliminary exam is qualifying in nature, which means that the marks obtained in the Preliminary Exam are not considered for final selection. The purpose of the exam is to select candidates for the Mains Exam. It consists of two sittings:
    1. General Studies-I: This paper will consist of 100 Multiple Choice Questions, to be marked on an OMR sheet, within the allotted period of two hours. This exam has negative marking with one-third of the marks deducted for wrong answers. Any unattempted questions, however, do not attract any penalty. The cut-off for appearing in the Mains exam is decided based on this paper.
    2. General Studies-II, commonly known as the CSAT Exam: It will consist of 80 Multiple Choice Questions, again to be answered within two hours. The exam is qualifying in nature with aspirants needing 33% of the total marks to be considered for the cutoff list for the mains exam. Negative marking is applicable for this exam also.
  2. Mains Exam: This test is of descriptive type with candidates needing to write down their answers in Question-cum-Answer (QCA) booklet. There are generally two sittings conducted on test days in morning and evening shifts, with each paper being three hours in duration. There are total of nine papers:
    • Two Language Papers: These papers are qualifying in nature. However, if the candidate does not qualify in the language and English paper, the other answer sheets are not evaluated. Both papers are of 300 marks.
    • Essay paper: The essay paper is worth 250 marks. Generally, there are two sections, with 4 topics each. A candidate must attempt one essay out of each section. However, the number of essays to be attempted may be changed by the UPSC in forthcoming examinations. Therefore, it is imperative to be prepared for such an eventuality.
    • Four General Studies Papers: Each paper is worth 250 marks. The detailed syllabus is mentioned in the next section.
    • Two Optional Papers: The candidate needs to choose an optional subject from the list provided by UPSC (mentioned in a subsequent section). Each of the papers is 250 marks.
  3. Interview/ Personality Test: The interview is the final stage of the examination. Marks obtained in the interview are added to the marks in the Mains exam to prepare the final merit list. Personality Test is worth 275 marks.

CSE 2021 Optional Subjects

  1. Agriculture
  2. Animal Husbandry and Veterinary Science
  3. Anthropology
  4. Botany
  5. Chemistry
  6. Civil Engineering
  7. Commerce and Accountancy
  8. Economics
  9. Electrical Engineering
  10. Geography
  11. Geography
  12. History
  13. Law
  14. Management
  15. Mathematics
  16. Mechanical Engineering
  17. Medical Science
  18. Philosophy
  19. Physics
  20. Political Science and International Relations
  21. Psychology
  22. Public Administration
  23. Sociology
  24. Statistics
  25. Zoology
  26. Literature of any one of the following languages: Assamese, Bengali, Bodo, Dogri, Gujarati, Hindi, Kannada, Kashmiri, Konkani, Maithili, Malayalam, Manipuri, Marathi, Nepali, Odia, Punjabi, Sanskrit, Santhali, Sindhi, Tamil, Telugu, Urdu and English.


  1. Indian Administrative Service
  2. Indian Foreign Service
  3. Indian Police Service
  4. Indian Audit and Accounts Service, Group ‘A’
  5. Indian Civil Accounts Service, Group ‘A’
  6. Indian Corporate Law Service, Group ‘A’
  7. Indian Defence Accounts Service, Group ‘A’
  8. Indian Defence Estates Service, Group ‘A’
  9. Indian Information Service, Junior Grade Group ‘A’
  10. Indian Postal Service, Group ‘A’
  11. Indian P&T Accounts and Finance Service, Group ‘A’
  12. Post of Asstt. Security Commissioner, Group ‘A’in Indian Railway Protection Force Service,
  13. Post of Asstt. Security Commissioner, Group ‘A’in Indian Railway Protection Force Service,
  14. Indian Revenue Service (Income Tax) Group ‘A’
  15. Indian Trade Service, Group ‘A’ (Grade III)
  16. Indian Ordance Factories Service, Group ‘A’(Asstt. Works Manager-Administration)
  17. Armed Forces Headquarters Civil Service, Group ‘B’ (Section Officer’s Grade)
  18. Delhi, Andaman and Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Civil Service (DANICS), Group ‘B’
  19. Delhi, Andaman and Nicobar Islands, Lakshadweep, Daman & Diu and Dadra & Nagar Haveli Police Service (DANIPS), Group ‘B’
  20. Pondicherry Civil Service (PONDICS), Group ‘B’
  21. Pondicherry Police Service(PONDIPS). Group ‘B’

CSE 2021 Resources

  1. Next IAS 18 Books
    • History of Medieval India
    • History of the World
    • History of Modern India
    • International Relations
    • Internal Security
    • Indian Economy
    • Indian Geography & Disaster Management
    • Indian Polity
    • History of Ancient India
    • Physical & World Geography
    • Ethics, Integrity & Aptitude
    • Art & Culture
    • Governance in India
    • Life Science
    • Ecology & Environment
    • History of Post-Independence India
    • Science & Technology
    • Indian Society
    Other Standard Books:
    • Current Affairs : Next IAS website and Next IAS Monthly Magazine
    • Ancient History : Old NCERT (RS Sharma)
    • Medieval History : Old NCERT (Satish Chandra)
    • Modern History : India’s struggle for Independence – Bipin Chandra
    • Art and Culture : CCRT website
    • Post-Independence History : India’s struggle after Independence – Bipin Chandra
    • World History – Norman Lowe
    • Geography – New NCERTs, Certificate Physical and Human Geography by Goh Cheng Leong, Oxford School Atlas. Following NCERTs are useful:
      • Fundamentals of Physical Geography – Class XI
      • India: Physical Environment – Class XI
      • Fundamentals of Human Geography – Class XII
      • India: People and Economy – Class XII
    • Polity : Constitution of India by DD Basu
    • Economy : Indian Economy by Datt and Sundaram, Indian Economy by K. Sankarganesh ; Any good economics newspaper, the budget and the current economic survey
    • Environment : Environmental Studies by Erach Barucha
    • Science and Technology: Class 6th to 10th NCERT for the basics, with special focus on current affairs
    • Ethics : Ethics , Integrity & Aptitude by G SubbaRao
    • International Relations : Book by Rajiv Sikri
    • Internal Security : IDSA Website

How To Choose Optional Subject

  1. Optional Paper plays a very important role in the final merit list. If prepared well, it can enhance the final score of the candidate and be the difference between getting the top choice and missing the cutoff altogether. At the same time, an under-prepared optional paper may lead to a steep fall in the final marks and throw a candidate out of the selection list.

    There are various factors that go into selecting an optional out of the given list:

    1. Familiarity: If your graduation subject appears in the list and you have a fair command over your graduation subjects, then it is easier to choose an optional. Since, you would have already spent 3 or 4 years preparing the subjects during graduation, you can be expected to have a fair idea of the subject already. Apart from that, you would have access to the books, which you might have bought or would be available in your library. All these factors make your graduation subject an ideal choice for the mains exam.
    2. Interest: Since an Optional subject would consume a high proportion of time, it is important to choose a subject of your liking. A subject in which a candidate has an interest is comparatively easier to prepare as reading books of the same subject do not feel like an additional burden. Apart from that, the Optional subject requires a greater depth of understanding as the question paper is of graduation level. In such a scenario, if the optional subject is of liking, then the study would seem like pursuing a hobby, which is the ideal situation. Here, one can try looking into the previous year papers to have a fair idea of the questions asked previously and determine the feasibility of preparing the optional subject accordingly.
    3. Availability of Material: This can be considered as the single most important factor regarding a non-familiar optional subject. If enough material including notes, books, test series etc. is available, then there is no harm in going for a subject that is different from graduation subject. In fact, many technical graduates usually prefer humanities subjects like history or political science as their optional subject in the Mains Exam. The best approach would be to move around the market and try to look at the available notes. If the material seems adequate, then the subject can be chosen as the optional subject.
    4. Good Coaching: It is a given that coaching is not essential for preparing for civil services. However, the benefit of coaching is that it simplifies the books and curates them according to the needs of the exam. Also, it might require a long time for a candidate to understand the requirements of an exam. Coaching makes it easier to understand the approach required to clear this exam. Therefore, if good coaching is available for an optional subject, then it will simplify the exam process for the candidate.
    5. Performance of the optional: Another important factor which has become significant in choosing an optional is the proportion of selected candidates, out of the total candidates who wrote the mains exam with the same optional subject. In recent years, popularity of many optional subjects has decreased among the student community as such optional has fetched comparatively lesser marks for the candidates. For instance, public administration was the clear favorite of a large majority of students around a decade back. However, many students have discarded it in the favor of some other optional subject which has been related with the toppers in some recent years.

How To Prepare For CSE

    1. Reading newspaper: Start your preparation by cultivating a habit of reading the newspaper daily. Any good national daily is adequate including the Hindu or Indian Express.
      • Rather than reading into too much detail, try to extract the relevant information which is important from the UPSC point of view.
      • Make a notebook in which you jot down summary of important articles and facts, which might help you in building good answers. It is important to periodically revise these notes.
      • To help the students manage their time well, Next IAS has started many new initiatives so that a succinct, to the point summary is available to the students. The initiatives are very helpful to the students if they are unable to find enough time to read the newspapers. To know more about them, feel free to contact on our helpline.
      • Answer as many questions as you can based on the newspaper. These might be a part of current affairs quizzes available on Next IAS website or a part of the regular test series. To know more about the test series, feel free to contact us on our student helpline.
      • Attempt descriptive questions based on the news items to get a grip on the current affairs as well as gain an upper hand in the answer writing.
    2. Static Portion: While current affairs form an important part of the preparation journey, it is important to understand the basics so that connecting news items is easy for a student.
      • For a beginner, the NCERTs are an absolute must. Read Social Science NCERTs of Classes 6th to 12th from cover to cover. This would build a good foundation to enrich the understanding later.
      • After you have read the basics, move on to the set of 18 books that has been provided by Next IAS. We have also compiled a list of standard books in a subsequent section. However, the Next IAS books are curated specifically for the UPSC.
      • For later revision, try to highlight the important points. Some students also find note making preferable to highlighting. This is totally up to you. Experiment before deciding on your choice. But once you have decided, stick to it.
      • Once you are confident about a chapter, try to solve questions based on it. That will provide you confidence in your memory and understanding.
    3. Answer Writing: This is a crucial part of the mains preparation.
      • There are many reasons why previous toppers recommend regular answer writing to the aspirants. Apart from other reasons, answer writing builds up speed, so that you can attend maximum questions in the actual examination.
      • Again, answer writing prepares you for the questions about which you might have a doubt. Such situations can be handled better if you have practiced them beforehand rather than trying it out in the actual exam.
      • Regularly attempting tests is important for being well prepared for answer-writing. Join a good test series and follow the schedule sincerely. To know more about Next IAS Mains test series, please feel free to reach out to us.

CSE 2021 and 2022 Schedule

Civil Services Exam 2021 Schedule (Click Here)

Notification4th Mar 2021
Last Date for filling the form24th Mar 2021
Civil Services (Prelims) Examination, 202210th Oct 2021
Indian Forest Service (Prelims) Examination, 2022
Civil Services (Main) Examination, 20217th Jan 2022
Indian Forest Service (Main ) Examination, 202127th Feb 2022

Civil Services Exam 2022 Schedule (Click Here)

Notification2nd Feb 2022
Last Date for filling the form22nd Feb 2021
Civil Services (Prelims) Examination, 20225th June 2022
Indian Forest Service (Prelims) Examination, 2022
Civil Services (Main) Examination, 202216th Sept 2022
Indian Forest Service (Main ) Examination, 202220th Nov 2022