bids are invited for title1 development of tube well in accordance with is 2800 ( part i ) and is 11189, to establish maximum rate of usable water yield without sand content ( beyond permissible limit ) , with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “v” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i / c disinfection of tube well, all complete, including hire &labour charges of air compressor, tools & accessories etc., all as per requirement and direction of engineer-in-charge. dsr 2021 title2 supplying and installation g i pipe b class size 50mm complete with suitable g i fittings etc as required. i / c rebate of old material. title3 lowering and lifting of existing 5 hp submersible pump set etc. complete as required. title4 supplying and drawing flat three core pvc insulated & pvc sheathed copper cable size 2.5 sq mm complete with connection testing etc as required i / c rebate of old material. title5 providing and fixing bore cap suitable for 150 mm dai bore well to protect the bore well complete with welding work, nut bolt, washer etc. as required i / c rebate of old material. title6 sitc of submersible pump set 5 hp 3 phase with 8 stage pump etc. as required i / c rebate of old material. title7 sitc direct on line submersible starter panel ( outdoor ) three phase max. operational current 9.52 ( a ) contactor 20 ( a ) over load relay 6-10 ( a ) etc. as required ( i / c less cost of replaced item ) . title8 supplying and replacement of following accessories in the existing borewell such as i / c rebate of old material ( a ) reducer 50 mm x 40 mm title9 supplying and replacement of following accessories in the existing borewell such as i / c rebate of old material ( b ) supporting clamp with nut bolts 40 mm title10 supplying and replacement of following accessories in the existing borewell such as i / c rebate of old material ( c ) c i flange 50 mm with rubber paking title11 supplying and replacement of following accessories in the existing borewell such as i / c rebate of old material ( d ) g i socket 50 mm title12 supplying and replacement of casing pipe 150mm b class thickness complete with cutting welding threading drilling etc as required i / c rebate of old material .