Combined Defense Services exam is direcred by the UPSC for recruitment to the Officers Training Academy, Indian Military Academy, Naval Academy and Air Force Academy.

Eligibility:-

A candidate must either be a citizen of India

Indian Naval Academy (INA):- Unmarried Male aged between 18 and 22 years of age are eligible to apply.

Indian Maritime Academy (IMA) :- Unmarried Male aged between 18 and 22 years are eligible to apply.

Indian Airforce Academy (IAA):-Unmarried Male aged between 18 and 22 years of age are eligible to apply.

For Officers Training Academy (SSC Course for Men):- Unmarried/Married Male aged between 18 and 22 years of age are eligible to apply.

For IMA and Officer's Training Academy:- Degree from a recognized university or equivalent.

For AirForce Academy:- Degree from a recognized university (with Physics and Chemistry as subjects in 10+2) or Bachelor of Engineering.

For Indian Naval Academy :- Engineering Degree from a recognized university or institution.

Exam Pattern:
Exam Pattern shall consist of
a) written examination
b) interview and personality test

Subjects:-

General Knowledge
English
Elementary Mathematics

Maximum Duration for Each Subject: 02 hours

Maximum Marks for Each Subject: 100 marks

CDS Exam Books
CDS Exam Guide: Combined Defence Services Exam by Author: Datason Rp

CDS Chapterwise - Sectionwise Solved Papers 1st Edition by Author: Arihant Experts

CDS Combined Defence Services Examination Practice Papers by Author: Sachchida Nand Jha

Pathfinder CDS: Combined Defence Services Entrance Examination 1st Edition by Author: Prashant Kumar, Balmukud Singh , Sanjeev Jain, Amit Rastogi, Atul Sharma, Digvijay Singh, Preeti Gupta .