Central Electricity Regulatory Commission(R-1)
West Bengal State Electricity Distribution Company Ltd. (R-2)
North Bihar Power Distribution Company Limited (R-3)
South Bihar Power Distribution Compnay Limited (R-4)
Damodar Valley Corporation (R-5)
Jharkhand Bijli Vitran Nigam Limited (R-6)
GRIDCO Limited (R-7)
Energy and Power Department
Govt. of Sikkim (R-8)
Power Grid Corporation of India Limited (R-9)
Odisha Power Generation Corporation Limited (R-10)
SKS Power Generation (Chhattisgarh) Limited (R-11)
PFC Consulting Limited (R-12)