Central Electricity Regulatory Commission(R-1)
Tamil Nadu Generation and Distribution Company Limited (R-2)
APTRANSCO (R-3)
Southern Power Distribution Company of A.P Limited (APSPDCL) (R-4)
Eastern Power Distribution Company of A.P. Limited (APEPDCL) (R-5)
TSTRANSCO (R-6)
Northern Power Distribution Company of Telangana Limited (TS NPDCL) (R-7)
Southern Power Distribution Company of Telangana Limited (R-8)
Power Company of Karnataka Ltd. (R-9)
Bangalore Electricity Supply Company Limited (BESCOM) (R-10)
Mangalore Electricity Supply Company Limited (R-11)
Chamundeshwari Electricity Supply Company Limited (R-12)
Gulbarga Electricity Supply Company Limited (R-13)
Hubli Electricity Supply Company Ltd. (R-14)
Kerala State Electricity Board Limited (R-15)
Puducherry Electricity Department (R-16)