annual maintenance contract and various piece meal maintenance job of coal mill , coal feeder , auto rejection system , ccp , burner and eot crane of 2x 250 mw units of stps , wbpdcl for two years , amc and various piece meal maintenance job of coal mill , coal feeder , auto rejection system , ccp & burner and eot crane of 2x 250 mw units of stps , wbpdcl . , monthly assured amount for lumpsum scope , fabrication of pyrite hopper gratings , repairing/replacement of bowl hub skirt , dismantling , replacement/readjustment , dismantling , replacement/readjustment , one no . rja replacement with grinding , servicing of one no . rja with one set , servicing of one no . rja without , overhauling of coal mill ( xrp-883 ) : , replacement of inner cone: , replacement of mill o/l venturi , repairing of coal mill o/l venturi with , repairing & modification of coal mill , repairing/patch work of mill scrapper , servicing of one no complete spring , servicing of one no complete trunnion , replacement of feeder outlet chute-i , replacement of feeder outlet chute-ii , replacement of feeder to mill ss drop , cleaning of coal and clinker from , replacement of damaged rotary air port , replacement of insulation cover plate , replacement of one no . trunnion bush , repairing/replacement of mill upper , fabrication of mill upper journal liner , reclamation job of coal feeder outlet , reclamation job of coal feeder outlet , reclamation job of feeder to mill ss , reclamation job of lower skirt with , replacement of coal mill planetary , servicing of old coal compartment , replacement of straight coal carrying , replacement of rejection conveying pipe , installation of ceramic liner tiles by , repairing with hard facing of static