ited, or 'NVVN,' a wholly owned ntedary of NTPC Lented, wrath Is tre largest stale-owned energy producer in India with 41 GW of power plants located Woughout Inn NVVN has a long-term credit ratirg of AAy on its cash crecN fl its by Credt Rating Irforrehm Services of Iron Umited. a glatel ratngs fern affiliated wit