tggenco ytps c andi unit4 assembling or dessembling , cleaning ,purging , testing, servicing, calibration and refixing of c and i equipments or instuments of main boiler , boiler auxiliaries id, fd, pa fans and lubeoil systems, blade pitch control dampers, guns and igniters, flame scanners, fuel oil valves and solenoids and instrumentation pertains to bowl mills,hot air and cold air gates of all mills, mill rejection system and gravimetric feeders, seal air and scanner air fans , sadcs power cylinders, smart positioners, transmitters, solenoid valves , limit switches, o2 analysers, aslds,seals replacement of pneumatic cylinders of had,cad,idf,paf,fdf dampers, burner tilt, movs pertaining to flue gas path gates and boiler valves, seperators and hwl valves, eco flow valves , bcw pumps, aph scaph system, soot blowing system, ervs, metal temperatures, flue gas temperatures, pressures and analysers and replacement of spare parts in unit 4 from commencement to 31.3.27