You can join Indian navy force after passing 12th grade examination through National Defense Academy (NDA) examination organized by Union public service commission .

Eligibility:
For air force and Naval Wings of National Defence Academy
You should be 10+2 passed with physics and mathematics subjects.

For Army wing of National Defence Academy :-
12th Class pass of the 10+2 pattern of School Education or equivalent examination conducted by a State Education Board or a University.

Age limit
16 ½ to 19 Years

Sex:
Only unmarried male candidates are eligible.

Vision Standards for Naval Candidates:
Uncorrected without glass 6/6
Corrected with glass 6/6
Limits of Myopia -0.75
Limits of Hypermetropia +1.5
Limits of Colour Perception I
Binocular Vision III

Important dates :
Date of notification : 21 JUNE 2014
Last date of form submission : 21 JULY 2014
Date of NDA exam is 28th SEPTEMBER 2014