🇮🇳 Mariahu, India

Mariahu is a town located in the Jaunpur district of Uttar Pradesh, India. It has a population of approximately 30,000 people. Although it is not a coastal city, Mariahu is situated along the Ganges river, providing access to inland waterways. This may be of interest to seafarers or shipowners looking to transport goods via river routes. However, it does not have any major ports, shipyards, or factories producing ship parts.