supply of different materials for construction of gravel road from amal barman to amal krishna barman anil barman house to kayan barman house mrinal sarkar house to hiten barkait house mithun barman house to tamizuddin mia house and tamiz miah hou , stone aggregate below 40 mm nominal size , loading unloading & stacking sand/ stone aggregate less than 40 mm nominal size ) , river bed metal , stone aggregate ( single size ) : 63 mm nominal size , stone aggregate 40 mm nominal size and above , loading unloading & stacking stone aggregate ( above than 40 mm nominal size ) , stone screeint type a ( 13 . 2mm ) , higher charges of diesel road roller 8 to 10 tones , display board , work site favilities , gst