Central Electricity Regulatory Commission(R-1)
U.P. Power Corporation Ltd. (R-2)
Ad Hydro Power Ltd. (R-3)
Haryana Power Purchase Centre (R-4)
Punjab State Power Corporation Limited
(R-5)
Himachal Sorang Power Private Ltd (R-6)
Adani Power Limited
Mundra (R-7)
Rajasthan Urja Vikas Nigam Ltd. (R-8)
Lanco Anupara Power Ltd. (R-9)
Lanco Budhi Hydro Power Pvt. Ltd. (R-10)
Power Development Deptt.
Govt. of J&K (R-11)
North Central Railways (R-12)
Jaiprakash Power Ventures Ltd. (R-13)
BSES Yamuna Power Ltd (R-14)
BSES Rajdhani Power Ltd. (R-15)
Tata Power Delhi Distribution Ltd. (R-16)
New Delhi Municipal Corporation (R-17)
Electricity Wing of Engineering Dept.
Union Territory of Chandigarh (R-18)
Powergrid Corporation of India Ltd. (R-19)
PTC (Budhil)
PTC India Ltd. (R-20)
PTC (Everest)
PTC India Ltd. (R-21)
Uttarakhand Power Corporation Ltd (R-22)
Himachal Pradesh State Electricity Board Ltd. (R-23)