tender for improvement of adm block at narayanpur c us of shq bsf malda- 1 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-ill) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) 2 half brick masonry with common burnt clay f.p.s. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor v level. cement mortar 1:4(1 cement :4 coarse sand) 3 providing and fixing m.s. grills of required pattern in frames of windows etc. with m.s. flats, square or round bars etc. including priming coat with approved steel primer all complete. fixed to steel windows by welding 4 providing and fixing aluminium die cast body tubular type universal hydraulic door closer (having brand logo with isi, is : 3564, embossed on the body, door weight upto 35 kg and door width upto 700 mm), with necessary accessories and screws etc. complete.