IMA, INA, AFA and OTA: what each academy offers

When you fill in the CDS form, you rank the academies you are eligible for. It takes a minute, and it decides the next several decades of your life: which uniform you wear, where you train, whether your commission is permanent or for a fixed term, and what kind of work you do on your first posting.

Many candidates fill this in by vacancy count or by which cut-off looks lowest. This guide gives you a better basis: what each academy is, what training there involves, and how to match an academy to the career you want.

The four academies at a glance

The three ranks are equivalent across the services. A Lieutenant in the Army, a Sub Lieutenant in the Navy and a Flying Officer in the Air Force sit at the same level.

Training duration and what happens there

All four academies combine three kinds of training:

• Physical training: runs, drill, obstacle courses, swimming, route marches and games.
• Service subjects: tactics, weapons, map reading and navigation, communications and, at AFA, the theory of flight.
• Character and leadership: appointments within the cadet hierarchy, responsibility for others, and a strict code on honesty.

INA adds seamanship and time on water. AFA is different from the rest because flying is the core of the course, and a flight cadet who does not progress in flying training may not complete the course as a pilot.

Life at an academy

Whichever academy you join, the first weeks are demanding. Days begin before dawn with physical training, followed by classes, drill and outdoor work, with little free time. Cadets live and train in squads or divisions, and each academy places great weight on teamwork, punctuality and personal integrity.

Graduates who arrive fit and used to a routine settle in faster. If you can already run a few kilometres comfortably, do push-ups and pull-ups, and swim, the physical side becomes a matter of improvement rather than survival. The guide to physical fitness for CDS sets out what to build before you report.

Permanent and short service commission

• Permanent commission (IMA, INA, AFA) is designed as a full career until retirement, with promotion to senior ranks subject to the rules and selection boards of each service.
• Short service commission (OTA) is for a fixed term. Under the rules in recent years this has been ten years, extendable by up to four more, with an option for eligible officers to be considered for permanent commission. Confirm the current terms in the notification.

Both are real officer careers. An OTA graduate commands soldiers from the first posting, just as an IMA graduate does. The difference is the planned length of the career and, for some, the options that open after it. The detailed comparison is in OTA or IMA.

Choosing preferences

Start with the career you want, then check it against eligibility.

A few practical points:

1. Only list academies you would actually join. If you are recommended and in merit, you may be allotted any academy you listed, in the order you ranked them.
2. Put your first choice first. Allotment follows your order, subject to merit and vacancies. Do not put an academy second hoping for better odds if you would really prefer it.
3. AFA needs CPSS. Candidates who opt for AFA take the Computerised Pilot Selection System at the SSB. The notification has historically treated this as a one-time test, so a candidate who fails it once cannot try AFA again. Check the current rule.
4. OTA can sit alongside IMA. Many candidates list both. If you do, you sit all three papers, and your OTA score uses English and GK only.

Why the SSB will ask about this

At the SSB, interviewers often ask why you chose a particular academy, what you know about it, and what you will do if you do not get it. A candidate who can say what training involves, what their first posting might look like and why that path suits them sounds prepared. A candidate who says "I just want to join the forces" sounds vague. Reading about your preferred academy (its history, motto, training and traditions) is part of your SSB preparation, not a distraction from it.

Quick check

1. Where is the Indian Naval Academy? Ezhimala, Kerala.
2. Which academy leads to a short service commission? OTA, Chennai.
3. What rank does an AFA graduate hold on commissioning? Flying Officer.
4. Which extra test do AFA candidates take at the SSB? CPSS.
5. Does an OTA graduate command troops? Yes. Both OTA and IMA graduates are commissioned as Lieutenants.

What to do next

• Confirm which academies you are eligible for, using the CDS eligibility guide
• Read the training section of the current notification for each academy on your list
• Write three lines for each academy: why you want it, what training involves, what your first years look like
• Rank only the academies you would genuinely join
• Start a basic fitness routine now, so the academy is an improvement, not a shock