As rescue, relief, and gradual restoration of power and infrastructure continue, one of the crucial questions remains: Why does Assam flood almost every year? The answer can be found in a unique combination of geography, climate, and the Brahmaputra River. At the heart of Assam’s flood story lies the mighty Brahmaputra River, which is one of the largest and most powerful in the world. AdvertisementAs it reaches the Assam Valley, the river has already collected water from glaciers, snowmelt, and heavy rain across the eastern Himalayas, rapidly expanding its volume. When these flood peaks from several tributaries arrive together, the Brahmaputra River can overflow across vast stretches of the Assam valley.