Hello,

To get admission in BSc Nautical Science you should give IMU CET examination. It is an national level entrance test organized by Indian Maritime University (IMU). The candidates who qualify this test are given admission in UG and PG courses in the Marine engineering field.  Also, you can give CUSAT CAT  which is a university level entrance exam conducted by Cochin University of science and Technology and by qualifying this exam you can take admission in CU colleges.

Hope it helps!

Good luck!