River carrying capacity is such a crucial factor in deciding if certain areas will be flooded and with what severity. This capacity is constantly changing, more so in tropical climate and high silt carrying rivers of South Asia, as new research shows. However, most models that are used in India, including by CWC, assume steady state situation. Nor are there constant and credible efforts to assess the river cross sections and river conveyance capacities and put them in public domain. The study shows how important it is that we wake up to this reality and ensure credible, consistent monitoring and assessments by credible independent agencies at the earliest. This has become even more urgent, the study underlines, since in changing climate, the rainfall patterns are changing fast.