CDS (Exclusive)



Combined Defence Service exam is conducted by Union Public Service Commission twice every year for 
recruitment to office cadre of the Army, Navy and Air force.

Exam Pattern:  Objective Questions (MCQs) with subjects like English, General Knowledge and Elementary Mathematics.

Candidates qualifying the written test are interviewed by the Service Selection Board and if finally selected, depending upon the choice given by the candidates and their merit list ranking, are sent to one of the following institutes for orientation training:

(a) Indian Military Academy , Dehradun
(b) Indian Naval Academy, Ezhimala
(c) Air Force Academy, Hyderabad
(d) Officers Training Academy , Chennai
(e) Officers Training Academy, Chennai 21st SSC Women (Non-Technical)

Educational Qualifications:
For IMA /OTA : A degree from a recognized University or equivalent.
For Indian Naval Academy: Bachelor of Engineering.
For Air Force Academy: Degree of a recognized University (with Physics and Mathematics at 10 +2 level) 
or Bachelor of Engineering.

The SSB procedure consists of two stage Selection process - stage I and stage II.
Only those candidates who clear the stage I are permitted to appear for stage II.

The details are:-
(a) Stage I comprises of Officer Intelligence Rating (OIR) tests are Picture Perception & Description Test (PP&DT). The candidates will be short listed based on combination of performance in OIR Test and PP&DT.
(b) Stage II Comprises of Interview, Group Testing Officer Tasks, Psychology Tests and the Conference These tests are conducted over 4 days. The details of these tests are given on the website
The personality of a candidate is assessed by three different assessors viz.The Interviewing Officer (IO), Group Testing Officer (GTO) and the Psychologist.
There are 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 test.
In addition, marks for Conference are also allotted based on the initial performance of the Candidate in the three techniques and decision of the Board. All these have equal weightage.
The various tests of IO, GTO and Psych are designed to bring out the presence / absence of Officer Like Qualities and their trainability in a candidate.
Accordingly candidates are Recommended or Not Recommended at the SSB.


For IMA: Unmarried male candidates between 19-24 years on 1st January or 1st July of the year succeeding the year of examination.

For Indian Naval Academy: Unmarried male candidates between 19-22 years on 1st January or 1st July of the year succeeding; the year of examination.

For Air Force Academy: Unmarried male candidates between 20-24 years on 1st January or 1st July of the year succeeding the year of examination.

For Officers Training Academy: (SSC Course for men) Male candidates (married or unmarried) between 19-25 years on 1st January or 1st July of the year succeeding the year of examination.

For Officers Training Academy: (SSC Women Non Technical Course) Unmarried women, issueless widows who have not remarried and issueless divorcees (in possession of divorce documents) who have not remarried are eligible.

Cut-off of CDS 1 2017 written exam

Course Name

Expected Cutoff score

Indian Military Academy, Dehradun


Indian Naval Academy, Ezhimala


Air Force Academy, Hyderabad


Officers Training Academy, Chennai

(For Women)


Officers Training Academy, Chennai


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