Sinking of 02 ( two ) nos. 250mm x 150mm dia. 360 mtr. deep Tubewell by Direct Rotary Rig Method using P. V. C pipe and pre- packed Resin Bonded Gravel Filter of Puinjali W/ S Scheme, Block- Gosaba under Canning Sub Division of Alipore Division, PHE Dte. ( Tubewell no.- III & IV )