Tender For work of as and when required work contract of chemical lab./dm plant/cw plant & coal feeder/sample preparation for work of coal rake, coal bunker, chp conveyer belt, hopper, biomass sample collection & preparation work. various type of water sample collection, chemical shifting/dosing & preparation work at various locations. valve operation and cleaning work of above all plants at unit 3 to 5 & chemical lab. gen. shift work of various sample collection, at gtps for 11 months