annual repair and maintenance of a / r and m / o to various roads under sub division ser-25 during 2022-23 ( sh- supply of material for day to day maintenance ) a / r and m / o to various roads under sub division ser-25 during 2022-23 ( sh- supply of material for day to day maintenance ) , providing and supplying in position 100 mm thick factory made machine batched & machine mixed precast rcc rectangular covers on drains of footpath of various sizes, of m-25 grade cement concrete for rcc work, including cost of centering, shuttering, reinforcement of 8 mm dia tmt bars of fe 500 grade @ maximum 100mm c / c on both ways , neat cement punning on finished surface, properly encased on all edges with 1.6 mm thick , 100 mm wide ms sheet duly painted over priming coat , reinforcement to be welded at edges with ms sheet and providing 2 nos. 12 mm dia bar for hooks etc i / c cost of cartage, all leads & lift, handling at site etc. all complete as per direction of engineer-in-charge. , supplying and stacking the following material at sub-division store and as directed by engineer-in-charge. , cold bitumen emulsion medium setting ( m.s. ) confirming to relevant is code. , portland cement , coarse sand ( zone iii ) , stone aggregate ( single size ) : 10 / 12.5 mm nominal size , circular shape 560 mm dia precast r.c.c. manhole cover with frame - h.d. - 20 , circular shape 560 mm dia precast r.c.c. manhole cover with frame - e.h.d. - 35 , precast r.c.c. grating with frame 500x450 mm horizontal grating , supplying and stacking of specialized instantaneous road repair compound bitumen compound shelmac, pr / bitumax pr or equitantduly packed in 25 kg / 50 kg bag comprising necessary ingredients as per morth specification. the rate shallinclude sale taxe / vat, loading, unloading and cartage to pwd store / siteas per direction of engineer-in-charge. ( nothing extra shall be paid on any other account ) , add cost index @ 22.69% on dsr item except item no. 3 , less@ 9.5%as per delhi govt. order except item no. 3