The Kosi or Koshi is a trans-boundary river which flows through Tibet, Nepal and India. It drains the northern slopes of the Himalayas in Tibet and the southern slopes in Nepal. कोशी नदी
The Ganges or Ganga is a trans-boundary river of Asia which flows through India and Bangladesh. The 2,525 km river rises in the western Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of North India into Bangladesh, where it empties into the Bay of Bengal.
Country: India, Bangladesh (as Padma)
Length: 2,525 km (1,569 mi)
Basin size: 1,320,000 km2 (510,000 sq mi)
Mouth: Bay of Bengal
The Koshi Barrage is a sluice across the Koshi river that carries vehicular, bicycle, and pedestrian traffic between Saptari district and Sunsari district of Nepal. It is near the international border with India. It was built between 1958 and 1962 and has 56 gates.
