tender for construction of 30000 litre oht((12m staging height) and extension of pipeline arrangements in gandhi colony extension area and kalainar colony in pattapathu village and panchayat in tenkasi panchayat union in tenkasi district under omdg fund of 6th sfc 2025-26. , earth work excavation and depositing on bank with an initial lead 10 m an lifit of 2 m in all soils such as red earth ,hard stiff clay soil, stiff black cotton soil,hard redearth,shales, murrams, gravel, stoney earth and earth mixed with small size boulders ete complete.,for foundation ss 20b , first depth of 0 to 2 m , 2nd depth of 2m to 3m , collection and supply of sand and filling in to the basement including cost and conveyance to the siteand all labour charges for filling as per standard specifications , cement concrete 1:4:8(one cement four sand and eight aggregates) using 40mm hbgs metal for levelling course for foundation including the cost of mixing concrete,ramming and curing etc., complete as directed by departmental , reinforced cement concrete 1:1.5:3 (one cement , one and half sand and three aggregate) using 20mm hbgs metal excluding cost of reinforcement,centering,shuttering but including cost of mixing concrete,placing, vibirating with mechanical vibrator, finishing curing etc., complete as directed by departmental officers , 1.50 m to 4.50m below g.l , 0 m to 1.50m below g.l , 0 m to 4.50m above g.l , 4.50 m to 7.32 m from g.l , above gl (+7.320 - +10.980m) , 10.98 m to 14.64 m from g.l , 14.64 m to 18.30 m from g.l , supplying and eracting steel centering for sides and soffits including necessary supports and shuttering to the required height for reinforced cement concrete items using ms sheets or suitable size of bg 10 stiffened with welded ms angles of size 25mmx25mmx3mm of boarfing,laid over silver oak joints of size 10cmx6.5 cm spaced at 90 cm center to center and supported by casuarina props 10 cm to 13 cm dia spaced at 75 cm center to center complying with standard speci