Any 12th class pass student of the 10+2 pattern of School Education can apply for Army Wing of National Defence Academy.

NA stands for Naval Academy. Only 12th Pass students of the 10+2 pattern of School Education with subjects Physics and Mathematics can apply for Naval Wing. Same conditions of educational qualifications apply for Air Force Wing.

CDS stands for Combined Defence Services. To give CDS exam, you have to complete your Graduate degree course in any discipline from a recognized University. Final year appearing candidates are also eligible to apply for CDS examination.