Construction/repairing of Approach road of approx.1.7 KM, repairing and extension of hardstanding area of the plinth, dewatering, removal of mud of the effluent pit and construction of CC/ RCC foundation to suit DM-5 rig for cluster plinth of any Location in Tengakhat & Chabua area or any area under Central field-West in Dibrugarh District, including supply of all materials except cement and Bitumen drum sheets.