Tender for Sinking Of 7 Nos. New Tube Well Of 300 Mm X 200 Mm Dia And 110 Mtrs. Deep By Direct Rotary Rig Method Using Upvc Pipes In Different Zones ....etc... 5 Years Operation And Maintenance After 3 Months Trial Run Within Falakata Municipality Under Amrut 2 in Siliguri - West Bengal

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