Central Electricity Regulatory Commission(R-1)
Bihar State Power Transmission Company Limited (R-2)
Bihar State Power Holding Company Ltd (R-3)
West Bangal State Electricity Distribution Company Ltd. (R-4)
Powergrid Corporation of India Limited (R-5)
Grid Corporation of Odisha Limited (R-6)
Power Department
Government of Sikkim (R-7)
Damodar Valley Corporation (R-8)
Jharkhand State Electricity Board (R-9)
Maithan Power Limited (R-10)