Approval List It's Called Gratitude PowerGrid Corporation Of India(PGCIL) Madhayanchal Vidyut Vitaran Ltd. (MVVNL) Bharat Heavy Electrical Ltd.(BHEL) Bihar State Power Transmission Company(BSPTL) Dakhsinanchal Vidyuat Vitaran Nigam Ltd. (DVVNL) UPPTCL Jharkhand Bijli Vitran Nigam(JBVNL) Purvachal Vidyut Vitaran Nigam (PUVNL) Power Transmission Corporation Of Uttrakhand Ltd. (PTCUL)
PowerGrid Corporation Of India(PGCIL) Madhayanchal Vidyut Vitaran Ltd. (MVVNL) Bharat Heavy Electrical Ltd.(BHEL) Bihar State Power Transmission Company(BSPTL) Dakhsinanchal Vidyuat Vitaran Nigam Ltd. (DVVNL) UPPTCL Jharkhand Bijli Vitran Nigam(JBVNL) Purvachal Vidyut Vitaran Nigam (PUVNL) Power Transmission Corporation Of Uttrakhand Ltd. (PTCUL)