tender for construction of drainage works at ward no 15 arputha vinayagar kovil street to danial thomas school back side in thisaiyanvilai town panchayat; 1 earth work excavation for foundation and depositing on bank with in the initial lead of 10m and a lift of 2m in hard stiff clay, stiff block cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc.,as per ss 20 a. tndss no: 23 & 24 vi (s2) vi,vii 9,10with standard specifications. 2 plain cement concrete 1:4:8 mix (one part cement, four part sand and eight part of aggrigate) using 40 mm size iss hbg metal from approved quarry including cost and conveyance of all materials to site. loading and unloading charges and labour charges for mixing. laying and curing etc., complete as per tndss no : 28 & vi (s2) vi (s5a) vii standard specifications as directed by engineer incharge. 3 supplying and erecting centering to sides and soffits including supports and strutting with necessary cross bracing for plain surface , centering for soffits upto 3 meter height using mild steel sheet casurina props or 10 cm to 13 cm dia spaced at 0.750 cm c/c complying with standard specifications as per tndss no : 30 & 86. 4 plain cement concrete 1:2:4 mix (one part cement, two part sand and four part of aggrigate) using 20 mm size iss hbg metal from approved quarry including cost and conveyance of all materials to site. loading and unloading charges and labour charges for mixing. laying and curing etc., complete as per tndss no: 28 & vi (s2) vi (s5a) vii standard specifications as directed by engineer incharge. 5 finishing the top of flooring with granothatic flooring with cement concrete 1:2:4 (one cement, two sand and four aggrigate) using 10 to 12mm stone chips – 25mm tk etc., complete.(for vent)