Hiring services for soil resistivity survey in Oil India Limited Pipeline Department Right Of Way from main crude line chainage km 630 to km 854 and close interval potential logging survey of cathodically protected Numaligarh-Siliguri 16 inch product pipeline in Oil India Limited Right Of Way from NSPL chainage km 508 to km 654 (Rangapani Terminal) under Electrical Section, Oil India Limited, PHQ, Guwahati, Assam