Quick Evaluation Overview (TL;DR)
UPSC Combined Defence Services (CDS) Eligibility: The Union Public Service Commission conducts CDS twice annually (CDS 1 and CDS 2) for admission into the Indian Military Academy (IMA), Air Force Academy (AFA), Indian Naval Academy (INA), and Officers Training Academy (OTA). Age brackets range from 19 to 24 years for permanent commission academies (IMA, INA, AFA) and 19 to 25 years for short service commission (OTA). Strict date of birth cut-offs are non-negotiable, with zero category age relaxations for defence officer entries.
Complete Guide to UPSC CDS Age Limits, Academy Cutoffs & Attempt Rules
The Combined Defence Services (CDS) examination is the premier avenue for university graduates to earn a commission as an officer in the Indian Armed Forces. Because the Ministry of Defence enforces rigid operational readiness age profiles, eligibility dates are strictly enforced down to the exact day.
Academy-Wise Eligibility & Educational Criteria
| Academy & Branch | Commission Type | Age Bracket | Gender & Marital Status | Required Degree |
|---|---|---|---|---|
| Indian Military Academy (IMA), Dehradun | Permanent Commission | 19 to 24 Years | Unmarried Males Only | Any Recognized Bachelor's Degree |
| Indian Naval Academy (INA), Ezhimala | Permanent Commission | 19 to 24 Years | Unmarried Males Only | B.E. / B.Tech (Engineering Degree) |
| Air Force Academy (AFA), Dundigal | Permanent Commission | 20 to 24 Years (26 with DGCA License) | Unmarried Males & Females | Degree with Physics & Math at 10+2, or B.E./B.Tech |
| Officers Training Academy (OTA), Chennai (Men) | Short Service Commission | 19 to 25 Years | Unmarried / Married Males | Any Recognized Bachelor's Degree |
| Officers Training Academy (OTA), Chennai (Women) | Short Service Commission | 19 to 25 Years | Unmarried Females / Issueless Widows | Any Recognized Bachelor's Degree |
Exam Pattern Differences: IMA/INA/AFA vs OTA
- IMA, INA, and AFA: Candidates must write 3 papers: English (100 M), General Knowledge (100 M), and Elementary Mathematics (100 M) for a total of 300 marks.
- OTA (Men & Women): Candidates write only 2 papers: English (100 M) and General Knowledge (100 M) for a total of 200 marks. Mathematics is excluded.
- Negative Marking: Each paper penalizes wrong answers by deducting -0.33 marks (one-third penalty).
Academy-Wise Age Limits & Educational Eligibility
The Combined Defence Services (CDS) examination conducted by the Union Public Service Commission (UPSC) selects officers for four premier military academies:
- Indian Military Academy (IMA), Dehradun: Age 19 to 24 years. Unmarried male candidates with any recognized bachelor's degree. Permanent Commission in the Indian Army.
- Indian Naval Academy (INA), Ezhimala: Age 19 to 24 years. Unmarried male candidates with an Engineering degree (B.Tech / B.E.). Permanent Commission in the Executive/Technical branch of the Indian Navy.
- Air Force Academy (AFA), Dundigal: Age 20 to 24 years (up to 26 for Commercial Pilot License holders). Degree in Engineering OR degree with Physics and Mathematics at 10+2 level. Permanent Commission in the Flying branch.
- Officers Training Academy (OTA), Chennai: Age 19 to 25 years. Men and women (married or unmarried). Short Service Commission (SSC) for 10 to 14 years. Exam covers English and General Knowledge only (no Elementary Mathematics).
SSB 5-Day Interview Selection Stages
Clearing the UPSC written exam enters candidates into the 5-day Service Selection Board (SSB) interview:
- Stage 1 (Day 1 - Screening): Officer Intelligence Rating (OIR) test and Picture Perception & Discussion Test (PPDT). Shortlisted candidates advance to Stage 2.
- Stage 2 (Days 2 to 5): Psychological Tests (TAT, WAT, SRT, Self-Description), Group Testing Officer (GTO) outdoor tasks (GD, PGT, HGT, Snake Race, Command Task), and Personal Interview by the Board President.