Excavation in foundation of building, bridges and other structures, including dagbelling, dressing, refilling around structure with excavated earth, watering and ramming lead upto one chain(30 m)and lift upto 5 ft. (1.5 m)" b)in ordinary soil."Supplying and filling sand under floor; or plugging in wells. (Select Fill)""Cement concrete plain including placing. compacting, finishing and curing complete (including screening and washing of stone aggregate):"