1. Brahmaputra River
The Brahmaputra River is one of the greatest in Asia and the longest to pass through Bangladesh, covering a length of 1,802 miles, and also cutting across India, Bhutan, and China. It starts from Kailash in northern Tibet and ends in the Bay of Bengal. The Assam people see this river as both a blessing and a curse citing the floods it causes on the adjacent land during the monsoon but leaves an immensely fertile ground after the floods. Peasants take advantage of this land not only to plant food for their use but also for export purposes.
The River Ganges originates from the Himalaya Mountains and it is accompanied by three distinct courses of flow, namely its upper, middle, and lower courses. Famous for its large water basin, it stretches over a distance of 1,569 miles cutting through India and Bangladesh. Over the years, the surrounding area has always been liable to floods causing numerous effects to the inhabitants living nearby. Despite all these effects that are detrimental to the residents, the floods also bring some benefits of land fertility.
3. Surma River
The Surma River, also known as the Barak River, originates from the Manipur Mountains in Northern India, and flows through Eastern Bangladesh, covering a distance of 559 miles. It ends in the Kishoreganj District, where it converges with River Kushiyara to form River Meghna. The dynamic meandering of this river faces environmental detriments posed by the surrounding inhabitants, among them being pollution and human settlement on vital catchment area.
4. Atrai River
The Atrai River hails from West Bengal, and flows through the Dinajpur District before fanning out in Chalaan Beel. It measures a length of 242 miles. Even though it is one of the leading causes of flooding in certain areas, it serves as a perennial fishing ground.
5. Teesta River
The Teesta River originates from the Himalayas and streams down forming a boundary between Sikkim and West Bengal. The 192-mile long river passes through India and merges up with river Brahmaputra.
6. Meghna River
The River Meghna hails from the convergence of the Surma and Kushiyara Rivers. Considered as one of the most important rivers in Bangladesh, it measures 164 miles and fans out of the Bay of Bengal. Its delta constitutes four principal mouths, namely Shahbazpur, Bamni, Hatia, and Tetulia.