Hello Bhupesh,

List of colleges which offers diploma in nautical science are as follows-

• Haldia Institute of Maritime Studies and Research, Haldia
• Arunai Engineering College
• Yak Maritime Academy, Navi Mumbai
• Indian Institute of Port Management, Kolkata
• T S Rahman, Mumbai
• Trident College of Marine Technology (TCMT), Kolkata
• Maritime Training Institute Shipping Corporation of India, Mumbai
• Perunthalaivar Kamarajar Institute of Maritime Science And Engineering (PKIMSE), Cuddalore

Hope it helped you

Thank you