As you have asked about the different career options in Indian Navy, I am giving you information about it, check below for the details

Officer Entry:

EXECUTIVE BRANCH
As an officer of the Executive Branch one can exercise command of ships, submarines and aircraft. Executive officers can specialise in any of the following:-

(a)Gunnery & Missiles
(b)Navigation and Direction
(c)Anti-Submarine Warfare
(d)Communications
(e)Pilot
(f)Observer
(g)Submarine
(h)Hydrography
(j)Diving

ENGINEERING BRANCH
ELECTRICAL BRANCH
EDUCATION BRANCH

Sailor Entry:

EXECUTIVE BRANCH
ELECTRICAL BRANCH
ENGINEERING BRANCH
AVIATION BRANCH
SUBMARINE BRANCH
MEDICAL BRANCH

Artificer Apprentice
Senior Secondary Recruits
Matric Recruit And Non Matric Recruit
Musicians