Karnataka

Hi Abhishek,
Every institute has it's own course specific fee structure. In order to know the exact fee it would be always advisable to browse through the official website of the institute where you wish to apply.
Below is the eligibility criteria for NDA.
For Army wing of National Defence Academy :- 12th Class pass of the 10+2 pattern of School Education or equivalent examination conducted by a State Education Board or a University.
For Air Force and Naval Wings of National Defence Academy and for the 10+2 (Executive Branch) Course at the Naval Academy :- 12th Class pass of the 10+2 pattern of School Education or equivalent with Physics and Mathematics conducted by a State Education Board or a University.
Candidates who are appearing in the 12th Class under the 10+2 pattern of School Education or equivalent examination can also apply.
For admissions, one has to fill the application form. application form along with an Information Brochure containing general instructions for filling up the form, an acknowledgement card and an envelope for sending the application will be obtainable from the designated Head Post Offices/ Post Offices throughout the country on payment of a requisite amount. Blank application forms and other particulars are published by UPSC in leading newspapers and Employment News in the month of March and September.
Hope this helps.
Wish you luck.