Can a computer science graduate get a job in navy engineers or any government job if yes then how? What should he do

Hi Defence academy do hv the option for engineers to apply. You may check at their respective sites. For govt job, register or follow sarkarinaukri.com or govtjobs.com.

You are eligible to join Indian Navy. Please refer to link http://nausena-bharti.nic.in/officer1.php for details.