construction of concrete road from bag para pukur par to land of paresh khanra , portland cement , nail , coarse sand , loading, unloading & stacking by manual means ( r.c.c. pipes , c.i. pipes and unreinforced cementpipes ) 900 mm dia , fine sand , polythene sheet ( 150 gm per sqm ) , thermocol 12.5 mm thick. , stone aggregate ( single size ) : 10 mm nominal size , stone aggregate ( single size ) :20 mm nominal size , stone aggregate below 40 mm nominal size , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , hire charges for 5 hp with operator, fuel and shifting etc all charges complete , hire charges of shuttering plank ( 25mm-30mm thick ) without prop including all fittings , g.s.t.