Sinking of 01 Nos. 250mm x 150mm dia. 360 mtr. deep replacement tubewell by D.R Rig method using UPVC Pipe and Pre-packed Resin Bonded Gravel Filter at 1st TWL site of Gurudaspur W/S Scheme, Block-Patharpratima under Alipore Division, PHE Dte.
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