Hello,

To be eligible to appear for NDA a candidate must have passed 10+2 with Mathematics and Chemistry as compulsory subjects from a recognised board or university.And then you need to apply for NDA and appear in entrance exam.You need to qualify in the entrance test and then you will get a call to attend SSB interview which is conducted for 5 days.And if you clear your SSB interview you will be given admission NDA based on merit.

You can click the link below for information like detailed syllabus, preparation tips etc

https://competition.careers360.com/exams/nda