Molluscs species are available at Digha coast more or less throughout the year. Highest population density is in post monsoon period. Availability goes down lowest in monsoon period and density is optimum in Pre-monsoon season. Both molluscs meat and shell are used abundantly in India especially Southern provinces of India like Odisha, Andhra Pradesh, Tamil Nadu, Kerala and Karnataka but very little in West Bengal. In the Southern States, the poor people including fishermen directly consume edible molluscs meat which are available. In West Bengal, the people show negligence to take edible molluscs meat as their everyday food. Only few tribal people consume molluscs meat adequately. There is a good prosperity of edible molluscs meat as food items in very near future in West Bengal because rapid depletion of marine fishery resources. In case of molluscs shell, it is used properly across the country. Shell is used to produce lime and lime is utilized to bring pH from acidic to basic side of a media in agricultural and fishery field. Molluscs shells are pulverized and used in poultry feed for the birds (hen and ducks) to lay eggs with thick and perfect shells. It can be used as feed of carnivorous fishes and shrimps for rapid growth as it contains high nutritional (Protein) values. The versatile use of molluscs shell has also gained momentum in the recent years.