Tenders for Provision Of Sub Station Building Alongwith Connected Items Under Work Sanctioned For Addn/Altn Of 33 Kv Oh Conductor To 33 Kv Ug Cable For Ckt No1 And Ckt No 2 Form 220 Kv Naraina To Khyber Grid And Ckt No 1 And Ckt No 2 From Ridge Valley To Khyber