Central Electricity Regulatory Commission(R-1)
GRIDCO Limited (R-2)
Power Department Govt. of Sikkim
(R-3)
Gujarat Urja Vikas Nigam Limited (R-4)
Madhya Pradesh Power Transmission Corporation Limited (R-5)
Maharashtra State Electricity Distribution Company Limited (R-6)
Chhattisgarh State Power Trading Co. Limited (R-7)
Electricity Department Administration of Dadra and Nagar Haveli
(R-8)
Electricity Department Administration of Daman and Diu
(R-9)
Uttar Pradesh Power Corporation Limited (R-10)
Uttaranchal Power Corporation Limited (R-11)
Jaipur Vidyut Vitran Nigam Limited (R-12)
Ajmer Vidyut Vitran Nigam Limited (R-13)
Jodhpur Vidyut Vitran Nigam Limited (R-14)
Power Development Department (R-15)
BSES Rajdhani Power Limited (R-16)
BSES Yamuna Power limited (R-17)
North Delhi Power Limited (R-18)
Haryana Power Purchase Centre Limited (R-19)
Punjab State Electricity Board (R-20)
Himachal Pradesh State Electricity Board (R-21)
Power Department Union Territory of Chandigarh (R-22)