fabrication and replacement of main roller of regulator gates at hindon cut canal tail regulator in new delhi - replacement of main roller assemblyofregulator gateby 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,by replacing new roller assembly with rubber seal, ‘o’ ring, grease nipple,cover plate etc., shifting 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.gate number-2(l1,l2,l3,l4 & r1,r2,r3,r4) ,3(l1,l2,l3,l4 & r1,r2,r3,r4) ,4(l1,l2,l3,l4 & r1,r2,r3,r4)