Maintenance contract of electrical system comprising of HT & LT Switch Gear, HT& LT Motors, HT& LT Cables, LT Bus Duct etc. under BTG, entire Ash package, Plant Water system including Barrage Intake and entire BOP area pertaining to IPH( E)and OPH( E) of 1X500 MW unit of DVC, BTPS for a period of 2(two) years.