NDA

Hi,
You can't apply for NDA before class 12th
Qualification Criteria:
For Army Wing of NDA Candidates should have qualified 10+2 or equivalent examination from any recognized board. For Air Force & Naval of NDA and 10+2 Cadet Entry Scheme at the Indian Naval Academy: Candidates must have passed 10+2 or equivalent exam with physics and mathematics subjects.

Applying candidate's age must be between 16.5 and 19.5 years. He must be born between July 2, 2001 and July 1, 2004 for NDA I. For NDA II, he must be born between 2nd January 2002 and 1st January 2005. Marital Status Applying candidate must be unmarried.

You can study at home, or there are plenty of coaching classes based on where you reside.

No, there is no separate cut-offs in NDA.

Eligibility for the exam Education : Graduation (min 3 years) in any discipline with min 60% marks and have passed Maths and Physics as subject at 10+2 level BE/ B.Tech from a recognised University with min 60% marks. Age Limit : 20 to 24 years.

As compared to NDA AFCAT is somewhat simple in question levels. So, it is the best option to choose IAF.

You can prepare using the study materials available online. Purchase previous year sample papers and practice.

There are plenty and I repeat plenty of books for such exams available online and on e commerce websites. Just type in and you will get all the books.

There are plenty of books online. But do concentrate on your basics from class 9th onward.

Take Science in class 12th. It is better to have maths, physics, chemistry and CS or biology.