CDS Examination Pattern / Combined Defence Service Examination

Union Public Service Commission

Combined Defence Service


Combined Defence Service (CDS) Examination, conducted by UPSC has come out with vacancies in four of courses. Out of these four courses, three require unmarried male applicants. Unmarried woman applicants can apply for only one course. This examination gives tough competition to the candidates appearing for it. Applicants need a full time preparation for this examination. More than 80,000 candidates apply for this post every year and only handful of candidates get selected.

UPSC CDS Vacancies:

Indian Military Academy, Hyderabad – 250; Indian Naval Academy, Ezhimala – 40; Air Force Academy, Hyderabad – 32; Officer’s Training Academy, Chennai (for men) – 175; Officer’s Training Academy, Chennai (for woman) – 25

Now, let us furnish the pattern of the examination so that a candidate can prepare accordingly keeping in mind the number of vacancies.

CDS Examination Pattern:

This examination consists of written examination and Personal interview.

A. Written Examination

For Indian Military Academy, Indian Naval Academy and Air Force Academy

There are three papers for these three courses, English, General Knowledge and Elementary Mathematics. Time duration for each test is 2 hours respectively. Each paper carries 100 marks respectively.

Officer’s Training Academy

Two papers are there for Officer’s Training Academy. Marks allotted are 100 marks for each paper. Total time for each paper is 2 hours.

B. Personal Interview

Applicants who qualify in the written examination will be interviewed by the panel of members. The candidates personality and intelligence are tested in this section of selection.


– The question paper will consists of multiple choice questions. The question papers of General English and Elementary Mathematics will be set in English and Hindi.

– The candidates must write the papers in their own handwriting

– The candidates are not allowed to use calculators inside the examination hall.

– There is penalty for every wrong answer marked by the candidate. Each wrong answer will deduct one third (0.33) of the marks assigned to that question as penalty.

CDS Examination Pattern / Combined Defence Service Examination
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