Details: earth work in excavation by mechanical means (hydraulic excavator )/manual means over areas (exceeding 30cm in depth. 1.5m in width as well as 10 sqm on plan) including disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed.a) all kinds of soil. filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. extra for every additional lift of 1.5 m or part thereof in :a) all kinds of soil. providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - all work upto plinth level :a) 1 : 4 :8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size). b) 1 : 2 :4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size). providing and laying in position specified grade of reinforce