Context: Incessant monsoon rainfall over the past week caused the Khawthlangtuipui River to overflow its banks, submerging portions of the border town of Tlabung in Mizoram’s Lunglei district.
About The Khawthlangtuipui River:
What It Is?
- The Khawthlangtuipui River is a major, ecologically vital transboundary river flowing through Northeast India and southeastern Bangladesh. Internationally, the river is best known by its downstream name, the Karnaphuli River. It acts as the primary hydrological life-support system and drainage channel for the entire southwestern zone of the Mizoram hills.
State and Country Flow: Originates and flows through the southwestern territory of Mizoram, India, before crossing the international border to traverse the Chittagong Hill Tracts in Bangladesh, eventually emptying into the Bay of Bengal.
Border Landmark: Serves as a natural, fluid geographical boundary between India and Bangladesh near the border sub-division of Tlabung.
Source: The river originates amidst the high-altitude folds of the Lushai Hills (Mizo Hills) in northern Mizoram.
Key Features:
- Robust Tributary Network: The river is fed by hill streams, including the Tuichawng and Phairuang in India and the Kasalong and Chengi in Bangladesh.
- Kaptai Dam Reservoir: The river forms Kaptai Lake behind the Kaptai Dam, supporting hydropower generation, flow regulation, and seasonal flood control.
- Chattogram Port Navigational Artery: Its lower stretch serves as a vital navigational channel for the Port of Chattogram, Bangladesh’s largest maritime gateway.
- Proposed Trade Bridge Node: A proposed transboundary bridge near Tlabung aims to connect Mizoram directly with Bangladesh’s transport network and strengthen bilateral trade.
Significance:
- The river supports India’s Act East Policy by offering landlocked Mizoram shorter access to Chattogram Port and wider regional trade routes.
- The Karnaphuli Hydroelectric Project supplies electricity to industrial zones and processing industries, supporting economic growth in southeastern Bangladesh.
