Power Grid Corporation of India Limited (POWERGRID) is a holding company, which is engaged in the business of transmission of power. The Company�s segments are transmission, consultancy, telecom, regional load despatch centers (RLDCs) and unified load dispatch centers (ULDCs). POWERTEL is the Company�s brand in telecom business. During the fiscal year ended March 31, 2012, the Company added about 10,600 circuit kilometer of extra high voltage (EHV) transmission lines, 15 EHV sub-stations and transformation capacity of more than 30,000 mega volt amperes (MVA). As of March 31, 2012, POWERGRID established transmission network of 92,981 circuit k kilometers of EHV transmission lines, 150 numbers of EHV alternating current (AC) and high-voltage direct current (HVDC) sub-stations, with a total transformation capacity of 1,24,525 MVA. On March 29, 2012, POWERGRID acquired Nagapattinam-Madhugiri Transmission Company Limited. On April 18, 2012, it acquired Vemagiri Transmission System Limited.