B.Tech Marine Engineering

Please check for your eligibility to pursue B.Tech in Marine Engineering from Samundra Institute of Maritime Studies from the criteria mentioned at the link provided below:
https://www.shiksha.com/b-tech/course/b-tech-in-marine-engineering-samundra-institute-of-maritime-studies-lonavla-pune-24627

Please check for eligibility to pursue B.Tech. in Marine Engineering from The Neotia University at the link provided below. Admission process, fee and course structure are also mentioned at the link provided below:
https://www.shiksha.com/b-tech/course/b-tech-in-marine-engineering-the-neotia-university-diamond-harbour-road-kolkata-249632

If you are looking to choose between CSE and Marine, then I'd suggest Marine but only when you do it from some good institution. Like IIT Kharagpur offers B.Tech Marine degree and they have good placements also. They have designed the course in such a manner that it caters to the needs of Marine Technology. Otherwise, CSE is also not bad as it always have a scope and IT sector is the largest among all.

Tolani Maritime Institute, PuneVels Academy of Maritime Studies, ChennaiMohamed Sathak Engineering College, Tamil Nadu
College of Engineering, Visakhapatnam
Maharashtra Academy of Naval Education and Training, Pune
Chennai School of Ship Management, Tamil Nadu
These are the colleges arranged according to their ranks.

Dear Vipin,
B.Tech would be of 4 years and you will get the chance to do 3 core industrial internship throughout your course. Whereas, B.Sc is of 3 years. You may not get the in-depth knowledge as like in B.Tech. Hence you may get higher chances of getting hired after B.Tech rather B.Sc.
Hope this helps.
Good luck.