The Merchant navy Positions are open for navigating officers, radio officers and marine engineers. Career in Merchant Navy can be pursued either as an officer or a rating in mainly two specialized fields, i.e. Marine Engineering and Nautical (deck). To become a seafarer, following streams of entries (Pre-Sea courses) are available to Indian citizens in the Government as well as in private training institutions (recognized and approved by Director General of Shipping, Ministry of Shipping.