Central Electricity Regulatory Commission(R-1)
Rajasthan Rajya Vidyut Prasaran Nigam Limited (R-2)
Ajmer Vidyut Vitran Nigam Limited (R-3)
Jaipur Vidyut Vitran Nigam Limited (R-4)
Jodhpur Vidyut Vitran Nigam Limited (R-5)
Himachal Pradesh Power Corporation Limited ( Formerly known as Himachal Pradesh State Electricity Board) (R-6)
Punjab State Power Corporation Limited (Formerly known as Punjab State Electricity Board) (R-7)
Haryana Power Purchase Centre (R-8)
Power Development Department (R-9)
Uttar Pradesh Power Corporation Limited (Formerly Uttar Pradesh State Electricity Board) (R-10)
Delhi Transco Limited (R-11)
BSES Yamuna Power Limited (R-12)
BSES Rajdhani Power Limited (R-13)
Tata Power Delhi Distribution Limited (R-14)
Chandigarh Administration (R-15)
Uttarakhand Power Corporation Limited (R-16)
North Central Railway (R-17)
New Delhi Municipal Council (R-18)
Madhya Pradesh Power Management Company Limited (R-19)
Madhya Pradesh Power Transmission Company Limited (R-20)
Madya Pradesh Audyogik Kendra (R-21)
Maharashtra State Electricity Distribution Company Limited (R-22)
Maharashtra State Electricity Transmission Company Limited (R-23)
Gujarat Urja Vikas Nigam Limited (R-24)
Gujarat Energy Transmission Corporation Limited (R-25)
Electricity Department
Government of Goa (R-26)
Electricity Department
Administration of Daman and Diu (R-27)
DNH Power Distribution Limited (R-28)
Chhattisgarh State Electricity Board (R-29)
Chhattisgarh State Power Transmission Company Limited (R-30)
Chhattisgarh State Power Distribution Company Limited (R-31)
NTPC Limited (R-32)
SEI Sunshine Power Private Limited (R-33)