The National Defence Academy / Naval Academy (NDA/NA) exam conducted by UPSC is
held twice a year (in the months of April / May and September /October). This exam
is conducted for admission to: (i) The Army / Navy / Airforce wing of NDA (ii) The
executive branch of Naval Academy.
The examination is in 2 steps. The first step is the written exam and only if you
have obtained minimum qualifying marks (as fixed by commission) you would be short-listed
for the SSB (Service Selection Board Tests).