tender for earth work excavation for foundation in all types of soils and sub soils to full depth (such as soils in rock / silt / light black cotton soil / ordinary soil ) except in rock requiring blasting but inclusive of shoring, shuttering and bailing out water wherever necessary and refilling the sides of foundation with excavated earth other than sand in layers of 150 mm thick well rammed and consolidated, depositing the surplus earth in places shown by the departmental officers with initial lead of 10 m and initial lift of 2 m. complete as per tnss 23 & 24, v, vi (s2), vii, 9,10 , plain cement concrete of mix 1 : 4 : 8 (one cement four sand eight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including formwork and centering labour charges, transporting and placing in position including shoring, strutting, forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. , plain cement concrete of mix 1 : 2 : 4 (one cement four sand eight aggregates) using 20mm gauge hard broken including cost conveyance of all materials to site including formwork and centering labour charges, transporting and placing in position including shoring, strutting, forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. , supplying and errecting steel centering including necessary supports for plain surfaces for reinforced cement concrete works such as column footing, column pedestals, plinth beams, grade beams, staircase steps, etc which requires only nominal strutting using mild steel sheets of size 90m