supply of materials for construction of gsb road , supply of stone aggregate ( single size ) : 63 mm nominal size , supply of stone aggregate 40 mm nominal size & above , supply of loading unloading & stacking sand / stone aggregate ( above 40mm nominal size ) , supply of loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , supply of stone aggregate below 40 mm nominal size , supply of stone screening type a ( 13 . 2 mm ) , river bed material , supply of display board , supply of worksite facilities / creche / drinking water / first aid , supply of stone aggregate below 40 mm nominal size , hire charges of diseal road roller-8 to 10 tonne , gst