This holistic book covers the richest area in North East India in terms of both explored and foreseen reserves of fossil fuels and other natural resources. Using a multidisciplinary approach, GIS, and geospatial data gathered from different case studies included, this book helps readers develop a thorough understanding of a highly dynamic big river, the Brahmaputra, and use it as a comprehensive resource for further understanding the science of rivers. It discusses the causal factors of decadal-scale fluvial dynamics, the nature of fluvial dynamics, lateral variability of the older flood plains and neotectonics in the shallow subsurface, and the overall trend of basin evolution at different depths.