(A) Minor Repairing Of Flow More-7 Stage, Volcan- 6 Stage And 3Up-3 Stage Pumpof Nakrakonda-Kumardihi B Colliery Under Bankola Area. (B) Minor Repairing (1) 4Stage Flow More Pump & (2) Mla-6 Pump Of Nakrakonda-Kumardihi B Colliery Under Bankola Area.