Hello aspirant,

I hope that you are doing absolutely great.

With reference to your above mentioned query, i would like to tell you that yes, yiu can join Mtech in CSE after completing btech in marine Engineering.

Further, below are some of teh top listed Colleges in India for Mtech in CSE :

IIT Bombay

MIT Manipal

COEP Pune

VIT Vellore

SRM University Chennai

DSCE Bangalore

RVCE Bangalore

DTU Delhi

and many nore.

You can check out the complete list by following the below mentioned link : https://engineering.careers360.com/colleges/list-of-me-mtech-in-computer-science-engineering-colleges-in-india

I hope that this will help.