construction of cover drain with filter chamber from khorad culb to bulon sk house at khorad , earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing,a lead of 75 m....., levelling, dressing and ramming the bottom, bailing out water as required complete. , filling in foundation or plinth by silver sand in layers not exceeding 150 mm , supplying and laying polythene sheet(150gm/sqm)over damp proof course or below flooring or roof terracing or infoundation or in foundation trenches , earthwork in filling in foundation trenches with good earth in layers not exceeding 15cm. including watering and ramming layer by layer complete with earth obtained from excavation of foundation or from fresh excavation of land arranged by department within a lead of 150 m , providing and laying design mix concrete for plain/reinforced concrete work in any part of bridge(excluding bottomplugging)with coarse aggregate of appropriate nominal size and grading fine aggregate(sand)confirming toproper grading zone,both of approved quality and cement as necessary including labour,cost and carriageof all materials....... excluding cost of labour and materials for formwork and reinforcement works.(b)m20grade , rainforcement for reinforced concrete works in all sorts of structure including distribution of bars, stirrups, binders ect………cutting to requisite length, bending to correct shape……….. as per drawing and direction.a) for works in foundation, basement and upto roof of ground floor/4m. i) for tie beam , hire & labour charges for shuttering with centering and necessary staging upto 4m using approved stout props and thick hard wood lanks……………including fitting fixing and striking out (upto roof of groung floor)a) 25mm to 30mm thick wooden shuttering as per decision & direction of engineer - in charge i)with props......... a)for cover slab,including noising and drip coursewhere necessary.(b) 20 mm thick plaster (1:6) , supplying display board at site