This chapter investigates source-to-sink sediment connectivity within the major dams of theDamodar river basin Damodar River Basin, focusing on the temporal dynamics of sediment transport and connectivity to sediment hotspots. The research examines how sediment moves from its source in upland erosion-prone areas to deposition zones within the dams and how this connectivity changes over time due to varying environmental factors and land use practices. A key aspect of this study is theBasin dis-connectivity index Basin Dis-connectivity Index (BDI), which quantifies the degree of sediment transport interruption across the basin. The BDI is used to identify regions where sediment flow is hindered, leading to sediment accumulation or loss in specific areas, particularly in relation to sediment hotspots. The findings reveal how changes in land use, topography, and hydrological factors influence sediment connectivitySediment connectivity and the formation of hotspots, contributing to long-term sedimentation patterns in the dams. This chapter highlights the importance of understanding source-to-sink connectivity for improving sediment management and mitigating sedimentation issues in the Damodar River Basin. It provides valuable insights for optimizing watershed managementWatershed management, reducing sedimentation risks, and enhancing the efficiency of the basin’s major dams.