Hiring Services for ...Hiring Services for Topographical Survey Work using Total Station & DGPS and Consultancy Services for preparation of Detailed Project Report (DPR) including Engineering Design, Inventory & Condition Survey, preparation of cost estimate for approach road and well-site of Drilling Location NMA in Namchai area in Lohit District of Arunachal Pradesh or any other drilling location in the state of Arunachal Pradesh.