Bangladesh is a great delta formed by the alluvial deposits of the three mighty Himalayan Rivers: the Ganges, the Brahmaputra and the Meghna. There are about 405 rivers in Bangladesh of which 57 are transboundary rivers. Out of the 57 transboundary rivers, 54 are common with India and remaining 3 with Myanmar. The life and livelihood of the millions of people of Bangladesh have been revolving around waters of these rivers over the ages. The Ganges, the Brahmaputra and the Meghna river systems drain a total catchment area of about 1.72 million sq km through Bangladesh into the Bay of Bengal . Out of this large catchment area, only 7% lies in Bangladesh. The other coriparian countries are India, Nepal, Bhutan and China. (BASIN MAP)