tender for filling with gsb in balaji garden park in ward no.2 @ sriperumbudur town panchayat; 1 earth work excavation for foundation in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders, sand, silt or other loose soil and to full depth as may be directed except in hardrock reqiring blasting inclusive of shoring shuttering and bailing out water wherever necessary refilling the sides of foundation with excavated soil other than sand in layers of 15cm thick well rammed and completed depositing the surplus excavated soil with in the compound in places shown by the departmental officrs with initial lead and lifts and cleaning, levelling, the site etc., complete as per ss 20b for foundation 2 providing and layinggranular sub-base by providing close graded material, mixing in a machanical plant at omc, carriage of mixed material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to acheive the desired density, complete as per clause 401.