Maybe obra dam par bane TSS , i guess NTPC Nabinagar ( jointly with IR ) will supply . 1000 mw powerplant with 2x250 Commissioned , Rest will be commissioned by 2018 end .
There are 2 powerplants under const. 1 at nabinagar combined capacity of 1980+1980+1000 ~ 5000MW
A . 3x660 = 1980 ntpc+bihar govt ( to be added 3x660 mw later )
B...
more... . 4X250 = 1000 ntpc+railways