West Bengal State Electricity Distribution Company Limited has come into effect from 01.04.2007 after restructuring of erstwhile West Bengal State Electricity Board in compliance of Electricity Act 2003.WBSEDCL is a major power utility of the state with consumer strength over 74 lakhs. 5 zones, 17 circles, 52 distribution divisions and 478 electric supply offices make up the backbone to the power distribution system of the state .