The Calcutta Electric Supply Corporation (CESC) is the Kolkata-based flagship company of the RP-Sanjiv Goenka Group, born from the erstwhile RPG Group, under the chairmanship of businessman Sanjiv Goenka. It is an Indian electricity generation and the sole distribution company serving  of area administered by the Kolkata municipal corporation, in the city of Kolkata, as well as parts of Howrah, Hooghly, 24 Parganas (North) and 24 Parganas (South) districts in the state of West Bengal.
The Calcutta Electric Supply Corporation (CESC) is the Kolkata-based flagship company of the RP-Sanjiv Goenka Group, born from the former RPG Group, under the leadership of businessman Sanjiv Goenka. It is an Indian electricity generation and distribution company serving a specific area governed by the Kolkata municipal corporation in the city of Kolkata, as well as parts of Howrah, Hooghly, 24 Parganas (North) and 24 Parganas (South) districts in the state of West Bengal.