The study have been made in assessing the diversity and taxonomy of marine gastropods from five study sites Harihareshwar, Lada, Jivanabander, Shrivardhan and Kondvil, from Indian coast, including mangroves which is provide nourishment and shelter for the gastropoda, rocky substrata, and muddy habitat, during October, 2014 to September, 2015, there is rich diversity of marine gastropoda molluscs, marine ecosystem in the whole sea might respond to global change, therefor there is need to research to maintain ecosystem, this approach to coastal diversity is not only helpful, but is in fact indispensable.