Hey Anandhu! These are some top private institutions of Kerala which offer marine engineering. 

• Euro Tech Maritime Academy, Aluva
• Kunjali Marakkar School of Marine Engineering (KMSME), Kochi
• College of Ship Technology, Palakkad
• Indian Maritime University - Cochin Campus, Kochi
• Engineers Training Centre (ETC), Thrissur

You can check the top colleges from the given below link

Marine Engineering Colleges