The Teesta Mega Plan, long discussed as a development project, has become a defining test for northern Bangladesh’s safety, livelihoods, and water diplomacy. From very different points of view, river researchers and environmental scientists argue that the Teesta crisis stems from the disruption of its natural flow. Without ensuring a scientifically determined minimum flow, no mega project will be sustainable in the long run,” he said. “The engineering of the Teesta Mega Plan must account for natural flow regimes, sediment transport, and the impacts of climate change. There is broad consensus: the success of the Teesta Mega Plan depends on whether government agencies, scientists, planners, economists, and—most importantly—riverbank communities can be meaningfully brought into a single, coherent framework.