Admission will be made on the results of the written examination to be conducted by the Commission followed by intelligence and personality test by the Services Selection Board of candidates who qualify in the written examination. All the candidates will be put to stage one test on first day of reporting at Selection Centres/Air Force Selection Boards. Only those candidates who qualify at stage one will be admitted to the second stage/remaining tests. Those candidates who qualify stage II will be required to submit the original Certificates along with one photocopy each of : (i) original Matriculation pass certificate or equivalent in support of date of birth; (ii) Original 10+2 pass certificate or equivalent in support of educational qualification.

The examination comprises:
(i) Written Examination 
(ii) Intelligence, obstacles and Group Tests by Services Selection Board of the candidates, who qualify the written examination. 

Examination Subjects

The subjects of the written examination, the time allowed and the maximum marks allotted to each subject will be as follows:

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

(b) For Admission to Officers’ Training Academy

• The papers in all subjects will consist of OBJECTIVE-TYPE questions only.
• The question papers (Test Booklets) will be set in English only.

Interview : Those who qualify the written test, has to undergo an interview. The objective of the interview is to assess the personal suitability of the candidate. 

The maximum marks allotted to the written examination and to the interviews will be equal for each course i.e. the maximum marks allotted to the written examination and to the interviews will be 300,300,300 and 200 each for admission to the Indian Military Academy, Naval Academy, Air Force Academy and Officers’ Training Academy respectively.  

Intelligence and Personality Test : In addition to the interview, the candidates will be put to intelligence test of both verbal and non-verbal nature, designed to assess their basic intelligence. They also have to undergo group tests, such as group discussions, group-planning, outdoor group tasks and asked to give brief lecturers on specified subjects. All these tests are intended to judge the mental caliber of a candidate.

To be acceptable, candidates for the Army/Navy and Naval Academy should secure the minimum qualifying marks separately in (i) Written examination and (ii) Officer potentiality test, as fixed by the Commission in their discretion, and candidates for the Air Force should secure the minimum qualifying marks separately in (i) Written examination (ii) Officer potentiality test, and (iii) Pilot Aptitude Test as fixed by the Commission in their discretion.

N.B. : Every candidate for the Air Force is given Pilot Aptitude Test only once. The Grade secured by him at the first test will there-fore hold good for every subsequent interview he has with the Air Force Selection Board. A candidate who fails in the first Pilot Aptitude Test cannot apply for admission to the National Defence Academy Examination for the Air Force wing or General Duties (Pilot) Branch or Naval Air Arm.

Candidates who have been given the Pilot Aptitude Test for any previous N.D.A. course should submit their application for this examination for the Air Force Wing only if they have been notified as having qualified in the Pilot Aptitude Test.

Centres of examination : 

On each each, the examination  is held at various centres recommended. Candidates admitted to the examination will be informed of the time table and place or places of examination. The date of holding examination and centres may liable to be changed at the discretion of the Commission.

Candidates should note that no request for change of centre will normally be granted. When a candidate, however, desires a change in centre from the one he had indicated in his application form for the Examination, he must send a letter addressed to the Secretary, Union Public Service Commission, giving full justification as to why he desires a change in centre. 

Courtesy : UPSC