Hello,

The age limit to appear for National Defence Academy is 16.5 years to 19.5 years. The candidate must have passed 10+2 with Mathematics, Physics and Chemistry from a recognized board. To get admission to Indian Naval Academy and Airforce Academy a candidate must have passed 10+2 with Mathematics and Physics as compulsory subjects. To join in IMA a candidate must have passed 10+2 in any stream. Candidates who are appearing in the 10+2 exam are also eligible to apply provided they must pass and obtain the certificate on before the cut off date. You can appear for NDA in the year 2023 as you will be appearing/pass class 12th in the year 2023 if there isn't gap in your education. And you can appear for NDA 1 2023, NDA 2 2023, NDA 1 2024 and NDA 2 2024. To check the NDA eligibility criteria you can click on the link below

https://competition.careers360.com/articles/nda-eligibility-criteria