Central Electricity Regulatory Commission(R-1)
Powergrid Corporation of India Limiited (R-2)
Transmission Corporation of Andhra Pradesh Ltd. (R-3)
Kerala State Electricity Board (KSEB) (R-4)
Tamil Nadu Electricity Board (R-5)
Electricity Department (R-6)
Electricity Department (R-7)
Eastern Power Distribution Company of Andhra Pradesh Limited (APEPDCL) (R-8)
Southern Power Distribution Co of AP Ltd. (R-9)
Southern Power Distribution Company of Telangana Limited (R-10)
Northern Power Distribution Company of Telangana (R-11)
Bangalore Electricity Supply Co. Ltd. BESCOM (R-12)
Gulbarga Electricity Supply Co. Ltd.. (GESCOM) (R-13)
Hubli Electricity Supply Co. Ltd. (R-14)
Mescom Corporate Office (R-15)
Chamundeshwari Electricity Supply Cooptation Ltd (R-16)
Transmission Corporation of Telangana Limited (R-17)
Karnataka Power Transmission Corporation Ltd. (R-18)
Tamil Nadu Transmission Corporation (R-19)
Central Transmission Utility of India Limited (R-20)