tender for construction of new retaining wall at osur road in periyur; 1 earth work excavation for foundation in all soils and sub-soils to full depth as may be directed except in hard rock requiring blasting but inclusive of shoring, strutting and bailing out water wherever necessary as per ss 20 b for foundation.. 2 cement concrete in 1:4:8 mix using 40 mm metal used for foundationincluding cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete. 3 supplying and erecting centeringshuttering includingnecessary supportsforplane surface infoundationandbasementandinallfloorsfor etc 4 cement concrete in 1:3:6 mix using 20 mm metal used including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete. 5 plastering with cement mortar 1:5 20mm thick mixed including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.