supply and installation of 6 nos ac in south 24 parganas zilla parishad- 1 installation of ac machine 2 earth work in excavation of foundation of structures as per drawing and technical specification,including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches,leveling, dressing and ramming the bottom, and backfilling with approved material complete as per direction of the engineer-in-charge(iv) without pumping out water and shoring 3 supplying, spreading and compacting sand to required thickness, in layers not exceeding 150 mm to proper gradient and camber, inundating each layer by water and packing and ramming layer by layer to achieve desired compaction, including lighting, guarding, barricading and making adequate earthen bundh where necessary, curing with water as per direction, mending cracks and depressions by ramming wherever necessary. 4 single brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints withlocal sand. 5 hire and labour charges for shuttering with orwithout staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steel sheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, crossdrain etc. the rate is inclusive of fitting, fixing and striking out after completion of work as per specification and direction. (b) where staging is not required. 6 add 18% gst 7 add 1.00% labour welfare cess