Hello aspirant,

Your profile suggests that you are Engineering aspirant in 11 th standard belonging to Karnataka domicile.

You can join Indian Army through NDA.

For NDA age limit is 16 to 19 years. To join NDA minimum 10+2 or intermediate is required. Next year you'll complete your 12 mostly, so in 2023 or 2024 you can give NDA exam based on your age.

Candidates must have passed 10+2 or equivalent exam from a recognised Board for Indian Army and Physics and Chemistry compulsory for Indian Air Force and Naval.

For NDA 1 in 2024, candidates should be born not earlier than July 2, 2005 and not later than July 1, 2008.

For NDA 2 in 2024, candidates must have born not earlier than January 2, 2006, and not later than January 1, 2009.

For more information about NDA  eligibility criteria go through below mentioned link.

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

May this information will help you.

Good Luck!!