Q89
Geography (incl. West Bengal)Rivers, Lakes, Dams & Water Resources
The following river divides West Bengal and Assam :
- a.Raidak
- b.Sankosh
- c.Kaljani
- d.Chel
Answer: (B) Sankosh
The Sankosh river, rising in Bhutan (where it is called Puna Tsang Chhu), flows along the eastern edge of Alipurduar district and forms the boundary between West Bengal and Assam. The Raidak, Kaljani and Chel are rivers within North Bengal: the Raidak and Kaljani flow through Alipurduar and Cooch Behar, and the Chel is a tributary of the Teesta system in the Kalimpong-Jalpaiguri Dooars. Other boundary rivers: Mechi (West Bengal-Nepal) and Ichamati-Kalindi-Raimangal and Hariabhanga (West Bengal-Bangladesh).