Lecture Series on Engineering Geology by Prof. Debasis Roy, Department of Civil Engineering, IIT,Kharagpur. For more details on NPTEL visit nptel.iitm.ac.in. Lecture Title Introduction to Subsurface Exploration and Intrusive Methods for Subsurface Exploration - Engineering Geology Video Lectures, Engineering Geology Video Tutorials, Civil Engineering Video Lectures, NPTEL Video Lectures, IIT Video Lectures, NPTEL Civil Engineering Videos, IIT Civil Engineering Video Courses