🇮🇳 Purba Singhbhum, India

Purba Singhbhum is a district in the state of Jharkhand, India. It has a population of approximately 2.5 million people. While it is not located on the coast, it does have several rivers passing through, including the Subarnarekha River, which may be of interest to seafarers. However, it does not have any major ports, shipyards, or factories producing ship parts.