Central Electricity Regulatory Commission(R-1)
Delhi Transco Limited (R-2)
BSES Yamuna Power Limited (R-3)
BSES Rajdhani Power Limited (R-4)
Tata Power Delhi Distribution Limited (R-5)
Rajasthan Rajya Vidyut Prasaran Nigam Limited (R-6)
Ajmer Vidyut Vitran Nigam Limited (R-7)
Jaipur Vidyut Vitran Nigam Limited (R-8)
Jodhpur Vidyut Vitran Nigam Limited (R-9)
Himachal Pradesh State Electricity Board
(R-10)
Punjab State Electricity Board (Now known as Punjab State Power Corporation Limited) (R-11)
Haryana Power Purchase Centre
(R-12)
Power Development Department
(Now know as Jammu Kashmir Power Corporation Limited) (R-13)
Uttar Pradesh Power Corporation Limited
(R-14)
Chandigarh Administration (R-15)
Uttarakhand Power Corporation Limited (R-16)
New Delhi Municipal Council (R-17)
Madhya Pradesh Power Management Company Limited (R-18)
Maharashtra State Electricity Distribution Co. Limited (R-19)
Gujarat Urja Vikas Nigam Limited (R-20)
Electricity Department
Government of Goa (R-21)
Electricity Department
Administration of Daman and Diu (R-22)
Electricity Department
Administration of Dadra Nagar Haveli (R-23)
Chhattisgarh State Electricity Board (Known as Chhattisgarh State Power Distribution Company Limited) (R-24)
Madhya Pradesh Audyogik Kendra (R-25)
Assam Electricity Grid Corporation Limited
(R-26)
Meghalaya Energy Corporation Limited (Formerly Meghalaya State Electricity Board) Short Round Road) (R-27)
Government of Arunachal Pradesh (R-28)
Power and Electricity Department
Government of Mizoram (R-29)
Manipur State Power Distribution Company Limited (R-30)
Department of Power
Government of Nagaland Kohima (R-31)
Tripura State Electricity Corporation Limited
(R-32)
Tamil Nadu Generation and Distribution Corporation Limited
(R-33)
Karnataka Power Transmission Corporation Limited
(R-34)
Transmission Corporation of Andhra Pradesh Limited (R-35)
Kerala State Electricity Board
(R-36)
Electricity Department
Government of Pondicherry (R-37)
Eastern Power Distribution Company of Andhra Pradesh Limited (R-38)
Southern Power Distribution Company of Andhra Pradesh Limited (R-39)
Northern Power Distribution Company of Andhra Pradesh Limited
(R-40)
Transmission Corporation of Telangana Limited (R-41)
Transmission Corporation of Telangana Limited
(R-42)
Bangalore Electricity Supply Company Limited
(R-43)
Gulbarga Electricity Supply Company Limited
(R-44)
Hubli Electricity Supply Company Limited (R-45)
Mangalore Electricity Supply Company Limited (R-46)
Chamundeshwari Electricity Supply Company Limited (R-47)
North Bihar Power Distribution Company Limited (R-48)
South Bihar Power Distribution Company Limited (R-49)
Energy and Power Department
Government of Sikkim (R-50)
Jharkhand State Electricity Board (Known as Jharkhand Bijli Vitran Nigam Limited (R-51)
West Bengal State Electricity Distribution Company (R-52)
GRIDCO Limited (R-53)