Contents: 1. Continental Drift and Plate Tectonics: Reconstructions, Gondwanaland Break-Up, Plumes and Drifting of Indian Plate. 2. Collision of Indian and Eurasian Plates and Seismotectonics: Himalayan and Tibetan Terrains. 3. Geodynamics of the Indian Continent and Seismotectonics: Isostasy, Archean-Proterozoic Cratons, Collision Zones, Rift Basins, Plumes and Lithosphere and it’s Flexure. 4. Seismotectonics and Geodynamics: Bhuj, New Madrid and Sumatra Earthquakes and Tsunami with Co-Seismic Changes. 5. Resource Exploration and Geodynamics: Hydrocarbons, Groundwater, and Minerals. 6. Some Typical Environmental and Engineering Studies: Near Surface Geophysics.