NIT Surathkal: M. Tech in Marine structures

I want to know about NIT Surathkal. They are offering M. Tech in #-Link-Snipped-#. Is it applicable to Mechanical engineers too? or do we need degree in Civil engineering?

My basic question is what are marine structures? Dams or ships?

I want to do M. Tech in Marine engineering. Will it be better for me? What are the colleges offering Marine engineering M. Tech?