For IMA /OTA: A degree from a recognised University or equivalent.

Naval Academy: B.Sc. with Physics and/or Mathematics or Bachelor of Engineering.

Air Force Academy: B.Sc. of a recognized University or equivalent with Physics and/or Mathematics as subjects or Bachelor of Engineering.

For IMA: Unmarried male candidates between 19-24 years on 1st January or 1st July of the year succeeding the year of examination.

Naval Academy: Unmarried male candidates between 19-22 years on 1st January or 1st July of the year succeeding; the year of examination.

Air Force Academy: Unmarried male candidates between 19-23 years on 1st January or 1st July of the year succeeding the year of examination.

 Officers Training Academy: Male candidates (married or unmarried) between 19-25 years on 1st January or 1st July of the year succeeding the year of examination.

The number of attempts of CDS written Examination depends on ones age group and one needs to be in last year of graduation in any field.
For IMA if one is in last year graduation he can avail a maximum of 10 chances.
Similarly for INA one gets again 10 chances
for OTA a total of 12.
Again provided 2 conditions are correct.
a. Your age fits the given bracket, and,
b. You have passed or appearing in last year graduation.

Stipend to Gentlemen or Lady Cadets during the entire duration of training in Service academies i.e. during training period at IMA and OTA. Rs 56,100/-p.m.* (Starting pay in Level 10).

For Airforce Candidates Cadets are authorised fixed stipend amounting to Rs. 21,000/- per month (Rs. 15,600/- pay in the pay band and Rs. 5,400/-as grade pay) during training. “On successful completion of training the stipend admitted will be converted as pay for all purposes. However, the period of training shall not be treated as commissioned service.”

Once flight cadets are granted pay and allowances by government, the death cover would be Rs. 50,000/- and the disability cover would be Rs. 25,000/- for 100% disability. This cover would be provided by AFGIS on payment of monthly non- refundable contribution of Rs. 76/- by each flight cadet undergoing flying training for which membership would be compulsory.

For IMA—Unmarried male candidates born not earlier than 2nd July, 1997 and not later than 1st July, 2002 only are eligible.
(ii) For Indian Naval Academy — Unmarried male candidates born not earlier than 2nd July, 1997 and not later than 1st July, 2002 only are eligible.
(iii) For Air Force Academy— 20 to 24 years as on 1st July 2021 i.e. born not earlier than 2nd July, 1997 and not later than 1st July, 2001 (Upper age limit for candidates holding valid and current Commercial Pilot Licence issued by DGCA (India) is relaxable upto 26 yrs. i.e. born not earlier than 2nd July, 1995 and not later than 1st July, 2001) only are eligible.
Note: Candidate below 25 years of age must be unmarried. Marriage is not permitted during training. Married candidates above 25 years of age are eligible to apply but during training period they will neither be provided married accommodation nor can they live with family out of the premises.
(iv)For Officers’ Training Academy—(SSC Course for men) unmarried male candidates born not earlier than 2nd July, 1996 and not later than 1st July, 2002 only are eligible.
(v) For Officers’ Training Academy—(SSC Women Non-Technical Course) Unmarried women, issueless widows who have not remarried and issueless divorcees (in possession of divorce documents) who have not remarried are eligible. They should have been born not earlier than 2nd July, 1996 and not later than 1st July, 2002.

(i) For IMA—Unmarried male candidates born not earlier than 2nd January, 1998 and not later than 1st January, 2003 only are eligible.
(ii) For Indian Naval Academy—Unmarried male candidates born not earlier than 2nd January, 1998 and not later than 1st January, 2003 only are eligible.
(iii) For Air Force Academy— 20 to 24 years as on 1st January, 2022 i.e. born not earlier than 2nd January, 1998 and not later than 1st January, 2002 (Upper age limit for candidates holding valid and current Commercial Pilot Licence issued by DGCA (India) is relaxable upto 26 yrs. i.e. born not earlier than 2nd January, 1996 and not
later than 1st January, 2002) only are eligible.
Note: Candidate below 25 years of age must be unmarried. Marriage is not permitted during training.
Married candidates above 25 years of age are eligible to apply but during training period they will neither be provided married accommodation nor can they live with family out of the premises.
(iv)For Officers’ Training Academy—(SSC Course for men) unmarried male candidates born not earlier than 2nd January, 1997 and not later than 1st January, 2003 only are eligible.
(v) For Officers’ Training Academy—(SSC Women Non-Technical Course) Unmarried women, issueless widows who have not remarried and issueless divorcees (in possession of divorce documents) who have not remarried are eligible. They should have been born not earlier than 2nd January, 1997 and not later than 1st January, 2003.

Well a total of 418 seats are available for all the candidates. They are further divided up in the following manner.
IMA (Indian Military Academy), Dehradun   :    Total Seats Available 100
INA (Indian Naval Academy), Ezhimala      :     Total Seats Available 45
AFA (Airforce Academy), Hyderabad.         :      Total Seats Available 32
OTA (Officers Training Academy), Chennai:      Total Seats Available 225 (Men)
OTA (Officers Training Academy), Chennai:      Total Seats Available 16 (Women)