Central Electricity Regulatory Commission(R-1)
Power Grid Corporation of India ltd. (R-2)
Rajasthan Rajya Vidyut Prasaran Niagam Limited (R-3)
Ajmer Vidyut Vitran Nigam Ltd (R-4)
Jaipur Vidyut Vitran Nigam Limited (R-5)
Jodhpur Vidyut Vitran Nigam Ltd (R-6)
Himachal Pradesh State Electricity Board (R-7)
Punjab State Electricity Board (R-8)
Haryana Power Purchase Center (R-9)
Power Development Department
Government of Jammu and Kashmir (R-10)
Uttar Pradesh Power Corporation Ltd (Formerly Uttar Pradesh State Electricity Board) (R-11)
Delhi Transco Ltd (R-12)
BSES Yamuna Power Ltd (R-13)
BSES Rajdhani Power Ltd (R-14)
North Delhi Power Ltd (R-15)
Chandigarh Administration (R-16)
Uttarakhand Power Corporation Ltd (R-17)
North Central Railway (R-18)
New Delhi Municipal Council (R-19)
Suzlon Power Infrastructure Ltd (R-20)