

|
PGCIL
|
|
Power Grid Corporation of India Ltd.
|
|---|---|---|
|
BHEL
|
|
Bharat Heavy electrical Limited |
|
NTPC
|
|
National thermal power Corporation |
|
PSPCL
|
|
PUNJAB STATE POWER CORPORATION LIMTED |
|
GETCO
|
|
GUJRAT ENERGY TRANSMISSION CORPORATION LIMITED |
|
PTCUL
|
|
POWER TRANSMISSION CORPORATION OF UTTARAKHAND LIMITED |
|
UPPTCL
|
|
UTTAR PRADESH POWER TRANSMISSION CORPN LTD |
|
RRVPNL
|
|
Rajasthan Rajya Vidyut Prasaran Nigam Limited |
|
MPKVVNL
|
|
MPKVVNL, Bhopal, Jabalpur and Indore region |
|
JKSPDCL
|
|
Jammu & Kashmir State Power Distribution Corporation Ltd. |
|
CSPDCL
|
|
CHHATTISGARH STATE POWER DISTRIBUTION CORPORATION LTD. |
|
HPSEB
|
|
HIMACHAL PRADESH STATE ELECTRICITY BOARD |
|
MPEB
|
|
MADHYA PRADESH ELECTRICITY BOARD |
|
DHVPNL
|
|
DAKSHIN HARYANA VIDYUT PRASARAN NIGAM LTD |
|
UHVPNL
|
|
UTTAR HARYANA VIDYUT PRASARAN NIGAM LTD |
|
APTRANSCO
|
|
ANDHRA PRADESH TRANSMISSION COMPANY |
|
MSETCL
|
|
MAHARASHTRA STATE ELECTRICITY TRANS.CORPN LTD |
|
DTL
|
|
DELHI TRANSCO LTD |
|
BIS
|
|
BUREAU OF INDIAN STANDARDS |