Due to unprecedented growth in population and the resultant massive mining of energy resources, especially the non-renewable resources and also water resources, these resources have gradually become scarce commodities. Hence the geoscientists and the technocrats from all over the world have embarked into many fold research programmes for locating newer reservoirs of these resources and also to develop models to conserve and sustainably exploit them. As this involves the total understanding of the rock types, tectonic architecture, geomorphology and reservoir conditions, the Geomatics technology comprising Remote Sensing, Geographic Information System (GIS), etc have been found to be vital tools in the inventory and management of these resources; While the former due to its synoptivity, multispectral nature and repeativity and the latter by virtue of its capability to store, manipulate and model huge volume of spatial and non-spatial data. Divergent geological provinces and processes are brought out deserving concepts and methods on geology, 3D visualization of subsurface lineaments, SRTM based lineament mapping, spatio-linear modeling of hard rock aquifer systems, 3D visualization of oil bearing structures, etc., both as field geologists and as researchers.