supply of different materials for construction of ibs tubewell soak pitunder suktabari gp within cooch behar 1 dev block -supply work under mgnega supply work under mgnega , silver sand , 1st class picked jhama bricks ( traditional ) , hire charges of shuttering plank ( 25mm-30mm thick ) without prop including all fittings , stone aggregate ( single size ) :20 mm nominal size , stone aggregate ( single size ) : 10 mm nominal size , portland cement , stone aggregate below 40 mm nominal size , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , stone aggregate below 40 mm nominal size , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , coarse sand , 1st class traditional bricks ( kiln burnt ) , medium sand , stone aggregate 40 mm nominal size , stone aggregate 40 mm nominal size and above , loading unloading & stacking sand / stone aggregate ( above 40mm nominal size ) , g i wire , tor steel rods / hysd bars / tmt bars ( jsw / jspl / shyam / srmb / bmasl / elecrosteel / ssl ) ( fe415 / fe500 / fe500d conforms to is: 1786 ) , display board , gst