the "district human development report", south 24 parganas, writes, “canning has emerged as a major market for supply of fish to kolkata. the fishermen of the area bring their catch to the all-night fish market at canning. here the commission agents receive the fish and auction them. it is bought by the wholesalers and transported to kolkata for sale to retailers, who sell it in different markets. however, as greater part of kolkata’s fish now come from south india and madhya pradesh, local wholesale trade at canning has lost out in the competition. there is, of course, scope of reviving this market once again.”