Replacement of gravimetric feeder belts, replacement of head pulley bearing, coupling halves, Studs, bronze and rubber bushes of main drive pulley coupling, opening and closing of RC feeder doors, replacement and overhauling of main reducer gear box of RC feeder and repairing of 22" coal pipes from all corners of boiler to classifier outlet gate of Unit-I &II as and when required during the year 2017-18 from 01-04-2017 to 31-03-2018