The Teesta River, originating from the Chitamu Lake in the Himalayas, has crossed Sikkim, India, and entered Bangladesh through the Kaliganj border in Nilphamari. The Indian Meteorological Department has issued a red alert in Mangan, Galshing and Soreng districts as the water level of the Teesta in the upstream has risen dangerously due to continuous heavy rains in Sikkim.
Its impact has also started to be felt in Bangladesh. The Flood Forecasting and Warning Center said that the water level of the Teesta, Dharla and Dudhkumar rivers in Rangpur division may rise in the next three days and the water level of the Teesta may cross the danger mark.
In addition, due to heavy rains in the upstream, the water level of the rivers in Sylhet and Mymensingh divisions may also rise in the next two days. In particular, the water level of the Sarigowain, Jadukata, Dhalai, Someshwari and Manu rivers may exceed the danger mark. This may create a flood situation in the lower areas of Sylhet, Sunamganj, Netrokona and Moulvibazar.
The flood forecasting centre said the Surma-Kushiyara river is rising and the trend is likely to continue for the next two days. The Ganga-Padma and Brahmaputra-Yamuna basins are also likely to rise in the next five days, though they may still flow below the danger level.
The district administration of Sikkim's Gangtok has issued an emergency declaration urging residents not to panic and remain alert. Disaster management officials have been directed to maintain contact with field staff working in the Teesta river basin.