The study investigates the changes in the physical characteristics and pathway of the Ganges River in its upper basin. It aims to explore the geomorphological development of the Upper Ganga River area between Rudraprayag and Rishikesh, using data from 2012 and 2024, with 2012 serving as the baseline year. The study highlights lateral shifts in the riverbanks caused by human activities and natural disasters. The shifts observed in 2014 demonstrate the impact of the 2013 disaster in the Mandakini River, offering insight into the immediate effects on the riverbanks. The 2024 data provides a current perspective, aiding in the understanding of long-term changes over time. This research focuses on identifying alterations in the river’s course and morphometric features over time, analyzing data from specific periods to understand the impacts of events such as natural disasters and infrastructural developments. By comparing historical and recent data, the study aims to provide insights into the dynamic nature of the river system and the factors driving its evolution.