Hello Muhammad,

NDA written exam is for 900 marks.You need to score above 450 marks to be on safe side to pass the clear the written test.After clearing the written test you will be called for SSB interview.The interview is conducted for 5 days and the interview is for 900 marks.Altogther if you manage to score above 900 you may get seat in NDA, Ezhimala.Aim bigger, stay motivated and give your best.

I hope this is helpful to you.