GIS and machine learning techniques were used to investigate hydro-morphology. Satellite data were analyzed to study the Barak River’s morphology and erosion-deposition hazards. Zone 1 and Zone 2 were identified as the most vulnerable areas in the study region. The township area of Silchar, which was considered a low-to-moderate erosion zone according to the erosion status given by the ROM scale, is where the river path follows fine loamy and fine silt soil for the longest distance. Simultaneously, a hydrological study utilized 1985–2021 rainfall data. The variation in monthly rainfall was analyzed using the Mann–Kendall test and Sen’s slope estimator. The Mann–Kendall Z (5.57) and p-value were highest in May. In hydro-morphological research, a substantial relationship between rainfall and river morphology was discovered. Sufficient precautions should be made beforehand to safeguard historically and recently susceptible places in order to stop additional increases in rainfall and their impact on river morphology. Otherwise, this could result in increased morphological vulnerability in the future. This research may serve as a valuable reference for improving river management in other alluvial rivers with comparable features.