Hello,

NDA is conducted by UPSC for admission of candidates to army, naval, air force wings of NDA and INA, the age limit is 16-19 years, the eligibility criteria is passed 10+2 from a recognized board, only in case of air force and naval it's compulsory to have mathematics and physics at 10+2 level, coming to the duration of training for Army/Naval/Air Force Cadets it's four years, the degree awarded at the end is BSc or BSc Computer/BA/BTech for Army, and BTech in case of Air Force/Naval, however I would say if you're not interested in joining NDA to sustain in the institution of long time then then don't go for it, NDA is not only an institution but it holds immense pride, and it's a different sentiment altogether serving for your country, if you don't have your career goals aligned in this direction then it's better you pursue your graduation in a field as per your preference, and appear for UPSC, you can also consider going for professional degree such as medical science/engineering, or any other, there is no such restrictions, you need to be just a graduate from a recognized university, and attain 21 years as on 1st August of the appearing year,