CDS eligibility: academy-wise age and education

Eligibility for most exams is a single line: a degree and an age range. CDS is different. Each of the four academies has its own age window, its own degree rule and its own marital-status condition, and a candidate can be eligible for one academy and not another in the same cycle. Getting this wrong costs you more than a form rejection. It can mean months of preparing for a maths paper you did not need, or losing a preference you could have used.

This guide sets out the rules academy by academy, shows how to check your age against a notification, and ends with a checklist to fill in before you apply.

Nationality

You must be a citizen of India. The notification also lists a few other categories (such as subjects of Nepal or Bhutan and certain persons of Indian origin who have migrated to India) who may apply with a certificate of eligibility from the Government of India. If you fall in one of those groups, read that section of the notification carefully.

Academy-wise age and education

How to check your age

The notification does not say "19 to 24". It gives two dates, and the OTA window usually opens a year earlier than the IMA window. Suppose a notification says IMA and INA candidates must be born not earlier than 2 July 2002 and not later than 1 July 2007, and OTA candidates not earlier than 2 July 2001 and not later than 1 July 2007. (These dates are for illustration; use the ones printed in your notification.)

Work it through with a hypothetical candidate born on 15 March 2002:

1. Is 15 March 2002 on or after 2 July 2002? No. The candidate is too old for IMA and INA in that cycle.
2. Is it on or after 2 July 2001 and on or before 1 July 2007? Yes. The candidate is eligible for OTA.

So the same person, in the same cycle, can apply only for OTA. This is why candidates near the upper limit should check each academy separately rather than assume one answer covers all four.

Educational qualifications in practice

The degree rules sort candidates quite sharply:

A commerce graduate can apply for IMA and OTA. A BSc graduate who studied Physics and Maths in Class 12 adds AFA. An engineering graduate is eligible for all four, subject to age and the other conditions.

Final-year students

Students in the final year of their degree can usually apply. They must produce proof of passing by the date the notification specifies, which is generally tied to the start of the course at the academy. If your results tend to be delayed, or you carry a backlog, check that deadline before you apply. Being recommended by the SSB and then failing to show a degree certificate in time wastes an entire cycle.

Marital status

• IMA, INA and OTA (men): candidates must be unmarried, and must stay unmarried until training is complete.
• AFA: candidates below 25 must be unmarried. Marriage is not permitted during training.
• OTA (women): the notification sets out the conditions. Recent notifications have allowed unmarried women and, in some cases, issueless widows or divorcees who have not remarried.

Read the marital-status clause in full. It is short, and candidates occasionally lose a seat over it after clearing everything else.

Women candidates

Through CDS, women have long been eligible for OTA, which leads to a short service commission in the Army. In recent notifications, IMA, INA and AFA have remained open only to men through this exam, and that exclusion has been challenged in court.

Physical and medical standards

You will not be measured at the application stage, but you will be after the SSB. The notification's appendix sets out standards for height and weight, eyesight, hearing, dental health and general fitness. AFA standards are stricter, especially for eyesight and body measurements related to flying.

Two practical points:

• Correctable conditions (weight, some dental issues, ear wax) are much easier to fix before the medical than after a rejection.
• If you are unsure about a condition, get an independent check early. An appeal process exists, but it is far better not to need it.

Why eligibility deserves attention early

Age decides how many attempts you have. Because CDS is held twice a year, a candidate who starts at 20 may get several attempts; one who starts at 23 may get two or three for IMA and a couple more for OTA. There is no limit on the number of attempts, only on age. Count your remaining cycles before you plan.

The degree rule decides which papers you sit. A commerce graduate aiming only for OTA can drop maths entirely and put that time into English and GK. If you are also eligible for IMA, you need all three papers. The guide on OTA vs IMA walks through that choice.

Common mistakes

• Reading the age limit as "19 to 24" instead of checking your birth date against the exact notified dates.
• Assuming a BSc makes you eligible for AFA without checking that you studied both Physics and Maths at 10+2.
• Applying in the final year without knowing the deadline for proof of passing.
• Ignoring the medical appendix until after the SSB.

Your eligibility checklist

• Date of birth falls within the notified range for each academy I am choosing
• My degree meets the rule for each academy (engineering for INA; Physics and Maths at 10+2 or engineering for AFA)
• If final-year: I know the deadline for proof of passing and can meet it
• I meet the marital-status condition and understand it applies until training ends
• I have read the medical standards appendix and checked height, weight and eyesight
• I have counted how many cycles I have left before the age limit

Quick check

1. Which academy needs an engineering degree? INA.
2. Which academy has only English and GK in the written exam? OTA.
3. What must a non-engineer have studied at 10+2 to apply for AFA? Physics and Maths.
4. A BCom graduate within the age limits can apply to which academies? IMA and OTA.
5. Is there a limit on the number of CDS attempts? No. Only the age window limits you.

Once you know which academies are open to you, read what each academy offers before you fill in your preferences.