tender for construction of culvert at kattalai colony head of kattalai panchayat , earth work excavation and depositing on bank with initial lead of 10m initial lift of 2m in hard stiff clay soil etc complete for open foundation as per ss 20 b , plain cement concrete 1:4:8 mix using 40mm hbg metal including cost and conveyance of all materials and all labour charges for mixing laying and compacting etc. complete , supply and fabrication of steel for reinforced cement concrete items including cost and conveyance of binding wire, etc., complete , supplying and errecting centering for sides and soffits including supports and strutting up to 3.20 m height for plane surface in all floors with all cross bracing using mild steel of size 0.90 cm x 60 cm and 10 guage stilfaned welded with mild steel angles of size 25 mm x 25 mm x 3 mm for boarding laid over silver oak (c-word) joint of size 10 cm x 6.50 cm dia spaced about cnter to center and supported by casuarinas propels of 10 cm to 13 cm dia spaced at 75 cm center to center etc., complete complying with std. specification and as directed for the following items , supplying and errecting centering for sides and soffits including supports and strutting up to 3.20 m height for plane surface in all floors with all cross bracing using mild steel of size 0.90 cm x 60 cm and 10 guage stilfaned welded with mild steel angles of size 25 mm x 25 mm x 3 mm for boarding laid over silver oak (c-word) joint of size 10 cm x 6.50 cm dia spaced about cnter to center and supported by casuarinas propels of 10 cm to 13 cm dia spaced at 75 cm center to center etc., complete complying with std. specification and as directed for the following items , cement concrete 1:3:6 mix using 20mm hbg metal including cost and conveyance of all materials and all labour charge etc. complete , cement concrete 1:1.5:3 mix using 20mm hbg metal including cost and conveyance of all materials and all labour charge etc. complete , gst amount for providing service