The Combined Defence Services (CDS) examination, conducted by UPSC, is the main route for graduates to become commissioned officers in the Indian Army, Navy and Air Force. Here is the full guide — eligibility, exam, the SSB interview and the training academies.
Overview
| Conducting Body | Union Public Service Commission (UPSC) |
| Academies | IMA, OTA, Naval Academy, Air Force Academy |
| Qualification | Graduation (Engineering/specific for Navy & Air Force) |
| Age | Approx. 19–25 years (varies by academy) |
| Selection | Written exam → SSB Interview → Medical |
| Apply at | upsc.gov.in |
Eligibility
A Bachelor’s degree is required (an engineering degree for the Air Force Academy and a degree with Physics/Maths for the Naval Academy). Candidates must be unmarried (as specified) and within the age band for their chosen academy.
Exam & Selection
- Written exam: objective papers in English, General Knowledge and Elementary Mathematics (Maths not required for OTA).
- SSB Interview: a 5-day Services Selection Board process testing officer-like qualities.
- Medical examination and merit-based joining of the academy.
Training
Selected candidates train at the Indian Military Academy (IMA), Officers Training Academy (OTA), Indian Naval Academy or Air Force Academy before being commissioned as officers.
Frequently Asked Questions
Can any graduate join through CDS?
Yes for the Army/OTA; the Navy and Air Force need specific degrees.
Is the SSB interview tough?
It is comprehensive — preparation in communication, group tasks and psychology helps.
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