Details: demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in - charge (item code hppwdsr 2020 - chapter 15.2) nominal concrete 1:3:6 or richer mix (i/c equivalent design mix): (item code hppwdsr 2020 - chapter 15.2.1) demolishing of stone rubble masoanry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable materail within 50 meters as per direction of engineer-in charge.(item code hppwd-sr 2020:- 15.9.2). excavation work by mechanical means (hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50 m.(item code hpsr 2020 - chapter 2.9)ordinary rock : (item code hpsr 2020 - chapter 2.9.1) earth work in excavation by