Defence Exams in India: How Army, Navy, Air Force and CAPF Entries Work

Defence recruitment in India runs through several genuinely different exams, conducted by different authorities (UPSC, the individual services, and paramilitary forces), leading to two fundamentally different kinds of careers: commissioned officer roles and Agniveer (soldier/sailor/airman) roles under the Agnipath scheme. Confusing these — or assuming "defence exam" means one thing — leads to misdirected preparation.

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This guide covers the major defence exams — NDA, CDS, AFCAT, Agniveer, CAPF Assistant Commandant, and Indian Coast Guard recruitment — what each leads to, eligibility, and how the selection process (including the SSB interview common to officer-entry exams) actually works.

The Fundamental Split: Officer Entry vs Agniveer Entry

Before looking at individual exams, it helps to understand the two broad tracks:

Officer entry (NDA, CDS, AFCAT, CAPF AC, Coast Guard Assistant Commandant) leads to a commissioned officer rank, requires clearing a written exam followed by the multi-day SSB (Services Selection Board) interview, and commits you to a full career (not a fixed short tenure).

Agniveer entry (Agnipath scheme — Agniveer Army, Agniveer Navy, Agniveer Vayu) leads to soldier/sailor/airman-level service, involves a written exam plus physical and medical tests (no SSB interview), and is a fixed four-year tenure, after which up to 25% of Agniveers are selected for regular long-term service based on merit and organisational requirement.

Major Defence Exams at a Glance

NDA (National Defence Academy)

NDA is the earliest entry point — open to Class 12th-pass candidates, generally aged roughly 16.5 to 19.5 years, and unmarried (women have been eligible across all three NDA wings since 2022, subject to reserved vacancies). The Army wing requires only a Class 12th pass in any stream, while the Navy, Air Force and Naval Academy wings require Class 12th with Physics, Chemistry and Mathematics. Selection is a written exam followed by the SSB interview; successful candidates train at NDA before moving to their respective service academy.

CDS (Combined Defence Services)

CDS is UPSC's graduate-entry route into the Army (via IMA or OTA), Navy (via INA) and Air Force (via AFA), conducted twice a year. Age and marital-status requirements vary by academy — for example, IMA requires unmarried male candidates aged 19–24, while OTA accepts both married and unmarried women. As with NDA, selection is a written exam followed by SSB.

AFCAT (Air Force Common Admission Test)

AFCAT is conducted exclusively by the Indian Air Force, twice a year, for graduates (technical and non-technical streams) seeking officer entry specifically into the Air Force — it doesn't lead to Army or Navy commissions. The general age band is 20–26 years at course commencement, with candidates under 25 required to be unmarried. Selection is the AFCAT written exam followed by SSB.

Agniveer (Agnipath Scheme)

Agniveer recruits into the Army, Navy and Air Force for a fixed four-year tenure (including roughly six months of training), open to candidates aged approximately 17.5 to 21 years (entry-specific variations apply), with Class 10th or 12th as the qualification depending on the specific entry stream. Selection is a written exam plus physical fitness and medical tests — there's no SSB interview at this level. On completing the four-year tenure, up to 25% of Agniveers are selected for regular long-term service through a merit-based process; the rest exit with a tax-free lump-sum "Seva Nidhi" package.

CAPF Assistant Commandant

Conducted by UPSC, CAPF AC recruits officers into the Central Armed Police Forces — BSF, CRPF, CISF, ITBP and SSB (Sashastra Seema Bal). Eligibility is a graduation degree (any recognised discipline, including technical/professional degrees), with an age band generally 20–25 years. Selection includes a written exam, Physical Efficiency Test, medical examination and a personal interview — a different structure from the SSB process used for NDA/CDS/AFCAT.

Indian Coast Guard

The Coast Guard recruits at two levels. Assistant Commandant (officer entry) requires a four-year Bachelor's degree with a minimum 55% aggregate, with age bands varying by stream (21–25 for General Duty/Technical, 21–30 for Legal); selection runs through the Coast Guard's own written test (CGCAT) followed by a Preliminary Selection Board and Final Selection Board — broadly similar in spirit to SSB but Coast Guard-specific. Navik (sailor-level entry) requires Class 12th with Physics and Maths for the General Duty branch, or Class 10th pass for the Domestic Branch, with selection through a written exam, physical fitness test, document verification and medical examination.

The SSB Interview: Common to Officer-Entry Exams

NDA, CDS and AFCAT all route successful written-exam candidates through the Services Selection Board (SSB) — a five-day assessment process, not a conventional interview:

• Day 1 (Screening): an intelligence/aptitude screening test that eliminates a large share of candidates before the remaining days even begin.
• Day 2 (Psychological tests): including the Thematic Apperception Test (TAT), Word Association Test (WAT), Situation Reaction Test (SRT), and a Self-Description test.
• Days 3–4 (Group Testing): run by a Group Testing Officer, including group discussions, group planning exercises, progressive and individual obstacle tasks, and command tasks.
• Day 5 (Interview and Conference): a personal interview, followed by a final conference where the board decides results.

This is a fundamentally different, much longer process than a typical bank or government job interview, and candidates who clear the written exam but haven't prepared for SSB specifically are often caught off guard by its length and format.

General Eligibility Pattern

• Class 10th pass: Agniveer (Domestic Branch-type entries), Coast Guard Navik (Domestic Branch).
• Class 12th pass: NDA (any stream for Army; PCM for Navy/Air Force), Agniveer (General Duty-type entries), Coast Guard Navik (General Duty, PCM required).
• Graduation: CDS, AFCAT, CAPF Assistant Commandant, Coast Guard Assistant Commandant.

For a full comparative breakdown of height, chest, weight, running and medical standards across these exams, see our Defence Physical Test guide.

Marital status matters more here than in most other government exam clusters — several officer-entry routes require candidates to be unmarried, with specific rules varying by academy and gender, so check the current notification's marital-status clause carefully rather than assuming it doesn't apply to you.

General Selection Process

Officer entry (NDA/CDS/AFCAT): Written exam → SSB (5-day process) → Medical Examination → Merit list based on written exam plus SSB scores.

Agniveer entry: Written exam → Physical Fitness Test → Medical Examination → Merit list, without an SSB-style interview.

CAPF AC / Coast Guard AC: Written exam → Physical Efficiency Test → (Coast Guard: Selection Boards; CAPF: Interview) → Medical Examination.

Frequently Asked Questions

What is the difference between NDA and CDS?

NDA is for Class 12th-pass candidates (roughly 16.5–19.5 years), leading to training at NDA before commissioning. CDS is for graduates (roughly 19–24 years, varying by academy), leading directly to academy-level officer training. Both are UPSC exams followed by SSB.

What is the difference between officer entry and Agniveer entry?

Officer entry (NDA, CDS, AFCAT) leads to a commissioned officer career and requires clearing the multi-day SSB interview. Agniveer entry is a fixed four-year tenure with a written exam plus physical/medical tests, no SSB, and only a merit-based chance (up to 25%) of continuing into regular long-term service afterward.

Can women apply for NDA and CDS?

Yes. Women have been eligible for all three NDA wings since 2022, and CDS's OTA (Officers' Training Academy) accepts both married and unmarried women — check the specific academy's current notification for exact vacancy reservation and conditions.

Is there an SSB interview for Agniveer recruitment?

No. Agniveer selection is a written exam followed by physical fitness and medical tests — the SSB process applies to officer-entry exams (NDA, CDS, AFCAT), not Agniveer.

Which defence exam should I target after Class 12th?

NDA is the primary Class 12th-level officer-entry route (Army accepts any stream; Navy/Air Force require Physics, Chemistry, Maths). Agniveer and Coast Guard Navik are also open at Class 12th (or Class 10th for some entries) if you're aiming for soldier/sailor-level service instead.

In Summary

Defence recruitment in India isn't one path — it splits sharply between a full officer career (NDA, CDS, AFCAT, CAPF AC, Coast Guard AC, all requiring the SSB or an equivalent multi-stage board) and a fixed four-year Agniveer tenure with a merit-based chance at continuing service. Once you've identified which track and qualification level fits you, our Defence Salary guide covers rank-wise pay and allowances, and the individual exam guides linked throughout this page cover eligibility, exam pattern and physical standards in full depth.

Sources

• Agnipath terms and the Seva Nidhi package: Ministry of Defence, Agnipath scheme