This book will introduce the readers to the basic scientific concepts to understand the complex fluvial geomorphology of Sapt Kosi river basin. This river basin passes surface height from 8848 m to 45 m therefore variety of changes can be seen in fluvial geomorphology of the basin. The text covers discussion and analysis about the river system, geomorphic processes, morphometric analysis. Fluvial dynamics. Geo-hydrological status, sedimentation, bank erosion and Applied Geomorphology. Through this book readers can understand the different fluvia geomorphological aspects of Sapt Kosi river basin as an unit. Thus this book should be useful to Undergraduate and Post graduate students in Geography and Geology, Hydrology and water and Engineering, to those interested in rivers and involved in planning and management of rivers.