Dear aspirant !

Hope you are doing great ! For going in nda you need tk qualify a written test , consist of 900 marks includes maths,english, science ,gk, current affairs,and social science ,out of 900 you need to get around 350 to qualify then you need to face ssb interview which is very tough to qualify ,it is of 5 days and very hard to pass ,only deserving candidates are selected and at last there is medical test which is also very strict. So workhard and development of personality is a major part in nda rather than study

Hope it helps you !

Thank you