How to Crack UPSC CDS Exam? - Check Study Plan and Tips

How to Crack UPSC CDS Exam? - Check Study Plan and Tips

Updated on Nov 03, 2023 02:17 PM IST | #CDS
Ongoing Event
CDS  Application Date : 28 May' 2025 - 17 Jun' 2025

How to crack the UPSC CDS exam?- The Union Public Service Commission (UPSC) conducts the Combined Defense Services (CDS) exam two times every year. The exam is held with the purpose of recruiting candidates for various courses under the Indian Military Academy, Indian Naval Academy, Air Force Academy, and Officers’ Training Academy. Candidates who wish to join the defence services can apply for CDS 2024 upon the release of the CDS application form 2024. Good preparation is a prerequisite for successfully clearing the UPSC CDS exam. In the material below, we discuss how to crack the CDS exam through various tips and tricks. Candidates are encouraged to read the matter below for details about how to start the preparations of CDS, information about the CDS question papers, the best books for CDS preparation and much more.

This Story also Contains
  1. UPSC CDS Exam Pattern and Syllabus
  2. UPSC CDS Question Papers
  3. UPSC CDS Books
  4. UPSC CDS Cut-Off Marks
How to Crack UPSC CDS Exam? - Check Study Plan and Tips
How to Crack UPSC CDS Exam? - Check Study Plan and Tips

UPSC CDS Exam Pattern and Syllabus

In order to crack the UPSC CDS exam, candidates must first know the scheme of the exam which consists of the CDS exam pattern and syllabus. The scheme of the exam consists of - a written examination conducted with objective type questions, an interview for intelligence and a personality test for the candidates. There is a negative marking of 0.33% for wrong answers marked in the objective-type question papers.

Subjects of the written examination, time and marks allotted to each subject:

Academy

Subject

Maximum Marks

Time duration

(i) Indian Military Academy,

(ii) Indian Naval Academy,

(iii) Air Force Academy

(i) English,

(ii) General Knowledge,

(iii) Elementary Mathematics

100

100

100

2 hours

2 hours

2 hours

(iv & v) Officers’ Training Academy

(i) English,

(ii) General Knowledge

100

100

2 hours

2 hours

(a) For Admission to the Indian Military Academy, Indian Naval Academy and Air Force Academy:

Subject

Duration

Max. Marks

1. English

2 Hours

100

2. General Knowledge

2 Hours

100

3. Elementary Mathematics

2 Hours

100

Total: 3 subjects

6 Hours

300

(b) For Admission to Officers’ Training Academy:

Subject

Duration

Max. Marks

1. English

2 Hours

100

2. General Knowledge

2 Hours

100

Total: 2 subjects

4 Hours

200

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Mode of Selection

a) Candidates who clear the written exam will be eligible to appear for an interview.

b) The final selection of candidates is done based on their performance in the written exam and the Interview.

Strategy and Tips for English Preparation

  • Start with English Grammar and vocabulary. Improvise till you get better and better.

  • Read the newspapers, especially editorial for half an hour daily.

  • Practice Reading Comprehension. Start with understanding the essence of the article before attempting an answer.

  • Solve previous papers. At the same time, practice mock tests regularly.

Strategy and Tips for General Knowledge Preparation

  • This is a scoring subject and hence the target should be to get accurate in this section. Apart from solving previous year papers and practising with mock tests, the following should also be

  • History of India and Geography carry questions in the exam paper, so focusing on it would yield good results.

  • Keep abreast of Current affairs/events topics. The Union Budget, COVID-19, Economic Survey, etc. are some topics that one must know about.

  • Information pertaining to India & neighbouring countries must be read and kept in mind.

  • Other miscellaneous information like authors, award winners, sea & airports and their location, state animals, etc. must also be covered.

Strategy and Tips for Elementary Mathematics Preparation

  • This subject is the most important one as marks in this are considered for selection in the merit list. Topics like Arithmetic-Number System and Theory, Algebra, Geometry, Mensuration, Trigonometry, and Statistics have to be covered as questions are asked from here. Tips to master Maths are:

  • Learn the basics first. Know the concepts and the methods to solve problems.

  • Figure out or learn shortcuts to arrive at solutions faster.

  • Learn formulae well to ensure speedy answering in the exam.

  • Develop speed in solving questions as this gives a cut-throat edge.

  • Do not attempt questions that you don’t know how to answer, as every incorrect answer will cause a negative marking of ⅓ mark.

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CDS-Interview Strategy for Intelligence and Personality Test

Candidates who clear the written exam will be called to appear for an interview before the Services Selection Board (SSB). The board evaluates the suitability of the candidate for an officer’s post using a standardised protocol of evaluation system comprising personality, intelligence tests, and interviews. The tests are of two types i.e. written and practical task-based. The SSB test is a 5-day evaluation process.

The SSB test procedure consists of a two-stage selection process. Candidates clearing stage I can appear for stage II. The details of the stages are:

(a) Stage I: This test consists of Officer Intelligence Rating (OIR) tests and Picture Perception & Description Test (PPDT). Shortlisting is on the basis of the performance in both the OIR Test and PPDT.

  • This section needs a slightly dedicated preparation. One needs to practise with pictorial tests that allow candidates to clearly define what they can gauge from a picture. Some areas to look at for preparation:

  • Questions on verbal and non-verbal intelligence need to be practised

  • Observing pictures and writing/describing must be practised well

  • Comprehension and assessment are two aspects that need to be worked on and for this only practice is the key.

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(b) Stage II: This stage has an interview, group testing officer tasks, psychology tests, and a conference call. These tests are conducted over 4 days. The details of these tests can be looked up in detail at joinindianarmy.nic.in.

  • Word Association Test (WAT), Self-Reaction Test, Self-Description Test are some parts of the tests. In addition, there may be group discussion; planning exercises; progressive group tasks; small group tasks and obstacles; individual tasks /obstacles; command tasks; a lectorate and a final group task.

  • Candidates must read up and check out what is required. In addition, they can participate in mocks conducted by some coaching centres to get an idea. Finally, there will be a conference with some of the officers who will look for traits like confidence, a positive attitude in adversity and life; honesty etc. Participating in mock interviews is a good idea.

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Personality Assessment

  • The personality of a candidate is assessed by three different assessors viz: the Interviewing Officer (IO), Group Testing Officer (GTO) and a Psychologist.

  • There is no separate weightage for each test. The marks are allotted by assessors only after taking into consideration the performance of the candidate holistically in all the tests.

  • In addition, marks for the conference are also allotted based on the initial performance of the candidate in the three techniques and also the decision of the Board. All these have equal weightage.

  • Accordingly, candidates are “Recommended or Not Recommended” by the SSB.

UPSC CDS - Success Formula

1. Analytical Approach

(a) Setting up a Goal: The first step towards cracking the UPSC-CDS exam is to know the CDS syllabus, and exam pattern and then create a goal-oriented plan. The goal should incorporate all elements. Advantages of setting up a goal

  • The pathway is clearly defined.

  • Measuring performance stage by stage becomes easy

  • Study goes as scheduled and the syllabus is completed well on time.

  • Time management becomes part of the routine

  • A well-defined doable goal keeps motivation high

(b) Time Management using a timetable: The 12 months in a year come with 4 weeks in a month, 24 hours of the day. When consolidated, that sums up to ample time to reach the goal of cracking the CDS exam. This is when a well-defined timetable helps one keep on track with the CDS preparation. One timetable cannot be used for every aspirant as each candidate has his/her own. strengths, weaknesses, habits, methodologies nature, etc. So, the timetable must be tailor-made keeping all these aspects and the goal in mind.

(c) Importance of Good Health for Cracking UPSC-CDS Exam: Good health is a prerequisite for success in any endeavour. Cracking CDS is no exception. Hence, candidates must eat well, sleep adequately and in general take care of themselves. Keeping fit is essential for clearing any Army or defence interviews. The armed forces place emphasis on medical fitness and hence, candidates must have a daily routine for exercise and ensure that they meet the standards prescribed.

(d) Emotion Management for CDS Exam: When a journey is for a year or so with no guarantee of success at the end, it's easy to get demotivated or stressed during preparation. Combating this is vital. Hobbies, simple walks or bonding with family can take the stress off. In addition, reaching out to like-minded professionals preparing for the CDS exam will help ease the journey.

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2. How to Manage Study for UPSC-CDS Preparation

(a) Improving Reading Speed: One thing that helps in completing the vast syllabus is the ability to read fast. It is a skill that must be developed to cope and prepare for an important exam like CDS. Some important tips to do so are:

  • Put the entire focus on whatever you are reading.

  • Time your study to know how you are faring

  • Move on to the next topic once done. Schedule revision separately after a gap of time.

  • Learn to skim over topics so that the assimilation of facts is faster.

  • Practice till the desirable reading speed is achieved.

(b) Make your own Study Timetable

Divide the syllabus of the written exam into subjects and each subject into chapters/ topics/ subtopics.

  • Classify all chapters, topics, and sub-topics subject-wise according to strong and weak areas as well as the importance of questions generally asked in the examinations.

  • Then divide the time period: one year into 12 months, then into weeks, and finally days. Now divide each day into hours and group time slots for subjects, revision, practice etc.

  • Put the chapters for each subject in months, weeks and days. Fix a schedule that ensures that the entire syllabus is completed well within time.

  • Incorporate revision time every day, every week, every month, and every third month.

(c) How to Schedule Revision for UPSC-CDS Preparation?

Revision is crucial so that aspirants remember the concepts, facts, and other information they have studied. If a gap of 9 to 15 days between two revisions is given, chances are high of forgetting some of the topics learnt. A good UPSC-CDS 3 Tier Revision Plan as given below will ensure this:

3-Tier Revision Plan

Daily Revision

Weekly Revision

Monthly Revision

Time

Morning and Night Recaps

Sunday

Month End

Subject

Subject name

Sunday

Month End

Chapter

Chapter Name

Sunday

Month End

Topic/Subtopic

Topic name

Sunday

Month End

Practice Sessions: Candidates must make the 15th day and a day every 3rd month to be the “Practice day”. This means that one should test oneself with mock papers, and past years' question papers to understand and measure the preparation efforts.

Daily Revision Schedule: This is a must. Every day before sleep, one must revise everything done that day. Likewise, in the morning, a quick revision of all chapters and topics studied the previous day must be done to keep the topics in memory.

Weekly Revision Schedule: This is another important measure. Every week, revision of subjects, chapters, and topics studied in the past 6 days of the week has to be done without fail. This will ensure a better performance in the actual exam.

Monthly Revision Schedule: This is the third stage of revision. It is better to do this every month on the last two days. Revision of all the subjects, chapters, and topics studied that month; solving practice tests and solved papers are the agenda in this schedule.

Likewise, a quarterly and six-monthly revision schedule should be followed for good results.

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3. How to Evaluate Study Progress for the UPSC CDS Exam?

(a) Learning Evaluation: It is important to stay up to date on the learning progress and evaluate preparation every week and every month. To do so, candidates must sit for a mock test and solve previous questions from the topics studied. What needs to be measured is the capability to answer the questions – be it one hundred per cent, fifty per cent or even less. The other point to remember is the number of questions that were not solved. The result of this test can point to the topics needing revision or further mastering and the topics from which aspirants can move on to the next ones.

(b) Speed Evaluation: The best tools to evaluate speed as well as for areas of improvement are mock tests and practice papers. The process to evaluate would be to solve papers within a set time limit and gauge performance. Another measure to note would be to ensure improvement with each test taken.

UPSC CDS Question Papers

UPSC will release the official question paper of CDS 2024 on its official website. Candidates planning to prepare for the CDS exam can download the question paper of CDS along with CDS answer keys for strategy-wise preparation. The question paper of CDS 2024 will be released after the CDS selection process is over. CDS question paper is released subject-wise for General Knowledge, Mathematics, and English language. With the help of the question papers, candidates will be acquainted with the difficulty level of the question paper, question paper pattern, types of questions asked in the exam and the question trends.

UPSC CDS Books

In order to crack the CDS exam, candidates must also know the best study materials. The study materials consist of the best books of CDS. From the following table, candidates can check the best books for the CDS exam.

Best Books for CDS exam 2024 - English

Books

Authors

Objective General English

S. P. Bakshi

Word Power Made Easy

Norman Lewis

Wren & Martin’s High School English Grammar & Composition

Wren and Martin’s

Best Books for CDS Exam 2024 - General Knowledge

Books

Authors

Geography & History

NCERT (Std 6th-12th)

Pathfinder for CDS

Arihant Experts

General Knowledge (Latest Edition)

Manohar Pandey (Arihant Publication)

Manorama Yearbook

Malayala Manorama publishers

Daily newspapers

The Hindu, Indian Express, etc.

Best Books for CDS exam 2024 - Mathematics

Books

Authors

Quantitative Aptitude for Competitive Examinations

R. S. Aggarwal

Mathematics for CDS Examination

R. S. Aggarwal

Pathfinder for CDS

Arihant Experts

UPSC CDS Cut-Off Marks

UPSC will release the CDS cut-off online mode for the written exam at its official website. The CDS cut-off will be released after the declaration of the final result. The CDS cut-off 2024 is the minimum mark that candidates need to score to qualify for the next stage. After the preparation of the final merit list of CDS, UPSC will release the CDS result 2024. The CDS cut-off is calculated on the basis of various factors like the total number of vacancies, total applications received and difficulty level of the exam.

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Frequently Asked Questions (FAQs)

1. Is UPSC CDS easy to crack?

The ease with which you are able to attempt the UPSC CDS depends on the thoroughness of your preparation.

2. How to crack UPSC CDS?

Candidates can crack the UPSC CDS by forming a solid study plan, studying from the recommended books and practising using previous years' question papers.

3. What should I study for the UPSC CDS exam?

You can get an idea of what to study for the UPSC CDS exam by consulting the CDS syllabus.

4. What is the age limit for CDS?

The age limit to apply for the CDS is at least 19 years of age. The maximum age is around 24-25 and varies depending on the course one joins after the CDS.

5. Can I crack CDS without coaching?

With a good study plan and diligent preparation, you will be able to clear the CDS without coaching.

6. Can 12 pass apply for CDS?

No. To attempt the CDS candidates must at least possess an undergraduate degree.

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Questions related to CDS

Have a question related to CDS ?

Hello Aditya,

As a PCB (Physics, Chemistry, Biology) student after your 12th board exam, you cannot directly appear for the Combined Defence Services (CDS) exam because it requires a bachelor’s degree. However, here’s a clear and concise guide on how you can prepare for and give the CDS exam after completing further studies, tailored to your background:

  1. Understand CDS Eligibility : The CDS exam, conducted by UPSC twice a year, recruits for the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers’ Training Academy (OTA).

    • Educational Requirement :

      • IMA and OTA: Any bachelor’s degree from a recognized university.
      • INA: Bachelor’s degree in Engineering.
      • AFA: Bachelor’s degree with Physics and Mathematics at 12th level or Bachelor of Engineering.

    • For PCB Students : Since you don’t have Mathematics in 12th, you’re eligible for IMA and OTA after completing a bachelor’s degree (e.g., B.Sc., B.A.). INA and AFA are not an option unless you pursue an engineering degree or have Mathematics at the graduation level.

    • Age Limit : 19–25 years (varies by academy; check upsc.gov.in for 2025 details).

  2. Steps to Prepare After 12th :

    • Pursue a Bachelor’s Degree : Enroll in a degree program (e.g., B.Sc. in Biology, Chemistry, or related fields, or even B.A.) to meet CDS eligibility. This takes 3–4 years.

    • Apply for CDS During Final Year : You can apply for CDS in the final year of your degree, provided you complete graduation before the training starts.

    • Application Process :

      • Visit upsconline.nic.in when notifications are released (typically December 2024 for CDS I 2025 and May 2025 for CDS II 2025).

      • Fill out the form, pay the fee (Rs. 200; exemptions for SC/ST/females), and select IMA/OTA as your preference.

  3. CDS Exam Structure :

    • For IMA/OTA : Written exam includes English, General Knowledge, and Elementary Mathematics (Maths is optional for OTA).

    • PCB Advantage : Your Biology and Chemistry background helps with General Knowledge (science sections). English preparation is manageable with practice.

    • Challenge : If you’re weak in Mathematics, focus on OTA, where Maths is not required, or practice basic 10th-level Maths for IMA.

    • Next Steps : Clear the written exam, then pass the SSB interview and medical test.



I hope this answer helps you. If you have more queries, feel free to share your questions with us, and we will be happy to assist you.

Thank you, and I wish you all the best in your bright future.

To prepare for CDS, CGL, and CAT during graduation, create a clear study schedule focusing on basics, reasoning, and aptitude. Practice daily mocks, improve time management, and stay consistent. Balance college and preparation with discipline and regular revision.

Your date of birth is 24th February 2006, and you will complete graduation in July 2028. For the CDS exam, the maximum number of attempts depends on your age limit and category, but generally, candidates have around 4 to 6 attempts before reaching the age limit.

For CDS 2 2025, with a date of birth of 6th October 2001, you are eligible for both IMA and OTA. The age limits for IMA are 19-24 years and for OTA are 19-25 years as of 1st January 2025, making you eligible for both academies.

Hello Gunal,

As a student born on 05-11-2001 you will have many opportunities to take the Combined Defence Services (CDS) exam conducted by UPSC. Age Limits will vary depending on the courses:

  • Indian Military Academy - 19-24 years
  • Indian Naval Academy - 19-24 years
  • Air Force Academy - 20-24 years
  • Officers' Training Academy - 19-25 years

You are eligible, based on your DOB for:

  • IMA/INA/AFA until 2025 (final attempts depending on month of notification and course start) and OTA until 2026.

Best Books for CDS Preparation:

  1. English: Objective General English by S.P. Bakshi (Arihant) and Previous year question papers (UPSC website)
  2. General Knowledge: Lucent's General Knowledge, Manorama Yearbook and follow the daily The Hindu or Indian Express regularly
  3. Mathematics: Pathfinder for CDS by Arihant, NCERT Maths (Class 6-10) and Quantitative Aptitude by R.S. Aggarwal

Required Documents for CDS SSB/Verification:

  • CDS Admit Card
  • 10th & 12th mark sheets and certificates (original & photocopy)
  • Graduation mark sheets and degree certificate (or provisional degree if final year)
  • Proof of identity (Aadhaar Card, PAN Card, etc. )
  • Passport size photos
  • NCC 'C' Certificate (if applicable)
  • Domicile/Category Certificate (if applicable)
  • Declaration/affidavit for final year candidates( if results are awaited)



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