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The Teesta River

The Teesta is often confused with the much larger Brahmaputra it eventually feeds. The two rivers actually rise from entirely different sources.

The Teesta River, seen from the Peshok viewpoint, near where the Rangeet joins it. Photo: Aniketalam, CC BY-SA 4.0, via Wikimedia Commons.

The Teesta’s course, from its Himalayan source through Sikkim and West Bengal to Bangladesh. Map: OpenStreetMap contributors, CC BY-SA 4.0, via Wikimedia Commons.

✊ Must Know

Course and Confluence

The Teesta originates from Tso Lhamo Lake, at about 5,280 metres in North Sikkim.
This source is entirely separate from the Brahmaputra’s, which rises near Manasarovar in Tibet.
The Rangeet, which also originates in Sikkim, is a genuine tributary of the Teesta.
The Teesta flows south through West Bengal, then into Bangladesh.
It joins the Brahmaputra (called the Jamuna in Bangladesh) rather than flowing into the Bay of Bengal on its own.

📝 Previous Year Questions

Teesta’s Source, Tributary, and Mouth — Checked

Statement 1 Teesta and Brahmaputra do not share a source. Teesta rises in Sikkim; Brahmaputra rises in Tibet. This statement is false.
Statement 2 The Rangeet genuinely originates in Sikkim and is a real Teesta tributary. This statement is true.
Statement 3 Teesta doesn’t reach the Bay of Bengal on its own. It joins the Brahmaputra in Bangladesh first. This statement is false.
Answer: (b) 2 only.
View this question on the full 2017 paper →