Supply & delivery of ISI marked 80 mm. dia Galvanised Miled Steel Tube ( Medium ) conforming to IS: 1239 ( Part- I )/ 2004 ( sixth revision ) with latest amendment under Rajarhat Store for GROUND WATER BASED MINI PIPED WATER SUPPLY SCHEMES ( MAXIMUM 100 HOUSEHOLD ) FOR CHANDIPUR, CONTAI- I, DESHAPRAN & EGRA- I BLOCK OF PURBA MEDINIPUR OF WEST BENGAL. ( SM/ 10666 ) under Tamluk Division, PHE Dte. ( Make TATA/ SAIL