replacement of new main rollers on gates of shahdara drain and hindon cut canal regulator new delhi - fabrication and replacementof main roller with bearingby detaching roller assembly from gate with the help of jigs & fixtures, jack etc., cutting lock plate by gas cutter, lifting roller assembly from gate by manila rope and shifting to working platform,andshifting new roller assembly to gate and fitting, greasing and testing etc. by operating gates including all cost of material, labour, t & p, scaffolding etc. for proper completion of work.shahdaradrain gate number-1 (l1& r1),2 (l1,& r1,),3 (l1 & r1),4 (l1& r1),5 (l1& r1, ),6 (l1& r1),7 (l1& r1 ),8 (l1& r1),9(l1& r1),10 (l1& r1 )