Tata Power Delhi Distribution Limited (TPDDL), previously North Delhi Power Limited, is a joint venture between the Government of the National Capital Territory (NCT) of Delhi and Tata Power Co. Ltd.. A 51% majority stake in the venture is held by Tata PowerIt started operations on 1 July 2002 and currently serves 6 million people in the North and North-west parts of Delhi. It has a registered consumer base of 1.40 million. The company’s operations span an area of 510 sq. km.