 The merchants generally operated in the trading ports of Konkan, Malabar Coast and Coromandel Coast of south India (and even in South East Asia including Java).In some ports this guild obtained royal charters, which permitted the special immunities and privileges within those cities.Anjuvannam finds mention in number of south Indian inscriptions, most notably in Quilon Syrian copper plates (c. 849 CE) and in Jewish copper plates of Cochin (c. 1000 CE).