Dear aspirant,

First things first, so you should be aware about some basics as follows

Educational Qualification:

• Passed Senior Secondary Examination(10+2) or equivalent examination with any board with at least 70% aggregate marks in PCM and at least 50% marks in English (in both 12th and 10th).
• Candidate should have appeared for JEE (Main) (B.E./B.Tech) exam.

So, yes according to this you are eligible for applying and getting a call letter from the Indian Navy. But, the selection procedure involves shortlisting of applications for SSB based on JEE(Main) All India Rank followed by an interview which is conducted in two stages (Stage I and Stage II).

The qualifying candidates will get a chance to pursue a 4-year degree course under the 10+2 (B.Tech) Cadet Entry Scheme.

All the Best!