By: Ruchika Kumari Chotrani
One should formulate a plan and follow a cohesive approach to prepare for entrance exam like CDS.
CDS or Combined Defence Services examination is a national-level entrance test conducted by UPSC twice a year, first in February and the second one in November. It is conducted for the recruitment of candidates for the following defence academies.
- Indian Military Academy (IMA)
- Indian Naval Academy (INA)
- Air Force Academy (AFA)
- Officers Training Academy (OTA)
For women/girls who are applying for CDS can only apply for the posts of OTA.
Exam Pattern for IMA, INA, AFA
Subject |
Marks |
Time |
---|---|---|
English |
100 |
Two hours |
General Knowledge |
100 |
Two hours |
Elementary Maths |
100 |
Two hours |
Exam Pattern for OTA
Subject |
Marks |
Time |
---|---|---|
English |
100 |
Two hours |
General Knowledge |
100 |
Two hours |
The candidates should be aware of all the subjects and important topics to score well. The Syllabus of IMA, INA, AFA and OTA is the same.
General Knowledge |
|
English |
|
Elementary Mathematics |
|
In case, you are preparing on your own, then remember one thing that you would not get the best study material of complete CDS Exam on one website or in a single book. Therefore, one has to create the best study material for them.
Here are some guidelines by which you can create a good study material:
- Download monthly current affairs from the website “Lead the Competition”
- Prepare notes on: Famous Books and its Author (recent year), National or Nobel Award Winners (recent year), Theories or Experiments (recent in news or discovered), States or Countries (recent in news).
- History is a very vast subject; one could not study and memorise the whole history in a short period. So, try to do questions of all periods and dynasties in a categorised manner.
- For Physics and Chemistry, refer NCERT books of Class 8, 9 and 10 and also, read Class 11 and 12 Physics and Chemistry from the handbook of the respective subjects.
- Categorise Biology in three parts - Humans, Plants and Animals. Do not make detailed notes, instead, try to cover basics and do questions on them.
- In Political Science, cover the following topics: Constitution, Our Preamble, Recent Schemes by Government, Changed Names of Places, Slogans and Taglines of Political Parties or Persons and Recent Historic Decisions or Bills (like CAA).
- For English preparation, refer to Lucent English Book
- For Maths, practise topics from NCERT books Class 7 to 10 and simultaneously maintain a separate copy for formulae and key points for last week revision.
Check here CDS books
Last week Revision Topics:
- Physics: Motion, Work, Energy, Power, Gravitation, Heat, Electric Current, Laws, Oscillation and Waves.
- Chemistry: Laws, Important Theories, Matter, Atomic Structure, Acids, Bases and Salts, Chemical Formula of Basic Salts, Polymers, Environment and Pollution, Solutions and Gas Laws, Radioactivity.
- Biology: Cells, Genetics, Specification of Bones, Diseases and their Causes, Applied Biology, Pollination, Evolution and Molecular Biology.
Check here complete CDS preparation tips
About the Author:
Ruchika Kumari Chotrani is pursuing B.Tech in Electrical Engineering (final year) from Arya College of Engineering and IT.
This account contains a repository of informative articles by external authors with domain expertise in various aspects of guiding students on how to go about pursuing their undergraduate and postgraduate studies in... Read Full Bio
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Student Forum
Answered a week ago
You would be eligible to take the CDS (Combined Defence Services) exam in April 2025 if you were between the ages of 20 and 24 on January 1, 2025. You would be 24 years old in December 2024 because your birthday is December 15, 2000, hence you would be eligible to apply for the CDS exam in April 2
K
Contributor-Level 10
Answered 3 weeks ago
The highest rank attainable through CDs is the rank of general which is a 4-stared officer position.
it is a general in the army, Admiral in the Navy and Air Chief Marshal in the Air Force.
and the lowest rank is lieutenant which is a 2 stared officer position.
A
Contributor-Level 7
Answered 3 weeks ago
The questions will consist of objective-type questions.
the total duration for the exam is 4 hours and is for a total of 200 marks for OTA.
The question papers for General Knowledge will be set in bilingually in Hindi and English. The exam will comprise 2 subjects, English and General Knowledge, and e
A
Contributor-Level 7
Answered 3 weeks ago
The CDS 1 application form 2025 will be available from December 11 to 31, 2024. The CDS 1 2025 exam will be conducted on April 13, 2025. CDS 2 notification will be released in May 2025, the last date for application will be 17th June 2025 and the exam will be conducted on 14, September 2025.
A
Contributor-Level 7
Answered 2 months ago
The Union Public Service Commission released the CDS examination 2025 approximate number of vacancies. It is around 457 vacancies will be announced for various defence services.
S
Contributor-Level 10
Answered 2 months ago
Candidates can download the UPSC CDS 1 2025 recommended marks by following the steps given below:
- Go to the official website
- Click on the CDS 1 2025 recommended marks link
- Click on the PDF link
- The CDS 1 2025 recommended marks PDF will appear on the screen
- Download the CDS 1 2025 marks and save it fo
S
Contributor-Level 10
Answered 2 months ago
The CDS exam requires in depth knowledge and clarity of concepts or conceptual clarity. So, regular solving of mock tests of the CDS exam is essential. It provides an additional advantage that a candidate requires to succeed in the exam. It also helps to test the preparation level and evaluate the p
S
Contributor-Level 10
Answered 2 months ago
The CDS exam is conducted twice a year for admission to IMA, Indian Naval Academy, and Air Force Academy. Basically, it works as a tool for students to prepare for an upcoming exam. Candidate will get an idea of the actual examination. Mock tests make candidates realise their mistakes that must be t
S
Contributor-Level 10
Answered 2 months ago
The candidates who will qualify for the CDS 2 result in 2025 will proceed to the SSB interview. The CDS 2 result 2025 will be released on the official website. Basically, the result PDF, cut-off marks, and the final merit-list will guide candidates on their next steps, mainly for the SSB interview r
S
Contributor-Level 10
Answered 2 months ago
The CDS OTA Result will be released on the official website. Candidates can check below the steps:
- Visit the official website
- Click on the CDS OTA result link
- Click on the result PDF link
- The CDS OTA result will appear on the screen
- Download the CDS OTA result PDF and save it for later use
S
Contributor-Level 10
My DOB is 15/12/2000. Am I eligible for CDS April 2025?