Tender For sinking of 200mm x 150mm dia. 300 mtr. deep tubewell by direct rotary rig method using p.v.c pipe and pre-packed resin bonded gravel filter at chemaguri point in connection with g.s. mela 2026 under canning sub-division of alipore division, phe dte.
Tender For corrigendum : providing of custom bid for services - 200143869job contract for removal, washing, and laying of filter gravel and sand at the pre-treatment plant gravity filter beds at ntpc barh