tender for [ part-a ] sinking of ground bored replacement tube wells, 250mm diameter x 150mm diameter, 185mtr. deep tube well with 150 mm dia. fiber glass reinforced epoxy resin strainer 30m. long having 250mm dia. 45 m. long mserw housing pipe, 150 mm dia. 110m. long well pipe alongwith blank pipe all complete including cost of material with proper development and necessary yield for ground water based pwss for head work site of sasan and its adjoining mouzas water supply scheme, block-hemtabad, district- uttar dinajpur, under raiganj division, phed. [ part-b ] laying of inter-connection of replacement tube well-ii for sasan water supply scheme and its adjoining mouza water supply scheme at hemtabad block under raiganj division, p.h.e. dte. in the district of uttar dinajpur.