Combined Defense Service , Antonys academy

Combined Defense Services (CDS)

The UPSC conducts CDS examination to fulfill the requirement of Indian Military Academy, officers training academy OTA, Indian Naval Academy NNA, and Indian Airforce Academy IAFA.

The dates on notification of the examinations usually released in the month of October, and the tests are conducted in February and November respectively.According to the policy of UPSC unmarried graduates males and females are eligible for CDS exams.

Although divorced female candidates age, less than 25 considered as unmarried.All the people who will be successful in the examinations will be sent to respective academies after an interview conducted by Service Selection Board which is called SSB.The recruitment of CDS is for the defense bodies of India.

This examination can give by any graduate irrespective with the field of education stream and course in IMA and OTA

Eligibility of CDS

Female candidates are only eligible for OTA officers training academy Chennai.


A candidate must be a citizen of India

Age Limits:

The candidate must be in the age group 20 to 25

Educational Qualifications

The candidate must have complete graduation

Syllabus and Exam of CDS examinations

  • English
  • General knowledge elementary mathematics arithmetic
  • Algebra
  • Trigonometry
  • Geometry
  • Menstruation


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.

Exam Pattern:

Objective Questions (MCQs) with subjects like English, General Knowledge and Elementary Mathematics and criteria will be as:

For IMA, Indian Naval Academy, and Air Force Academy

  • English ->duration 2 hrs, max.marks 100
  • GK -> duration 2 hrs, max.marks 100
  • Maths -> duration 2 hrs, max.marks 100

Officer’s Training Academy(OTA)

  • English ->duration 2 hrs, max.marks 100
  • GK -> duration 2 hrs, max.marks 100