Teesta water dispute

Geography glossary

Topic: Water Resources of India: Availability, Use and Conservation · NCERT: Beyond NCERT

Meaning

The Teesta water dispute is a long-running disagreement between India and Bangladesh over how to share the water of the Teesta river in the dry season. The Teesta rises in Sikkim, flows through West Bengal, and enters Bangladesh. There is still no treaty on it, because a 2011 interim deal was never signed. The dispute matters for three reasons: farmers on both sides need the water, India's Centre and states disagree over it, and China has offered Bangladesh a project on this river close to the Siliguri Corridor.

Explanation

The river and its course

  • Origin: the Teesta rises in the glaciers and lakes of north Sikkim, in the Tso Lhamo/Zemu glacier area of the Eastern Himalaya.
  • Course:
  • Sikkim, where it flows through mountains.
  • West Bengal, where it comes out onto the plains near Sevoke and flows past Jalpaiguri.

  • Bangladesh, through the Rangpur region.

  • Mouth: it joins the Brahmaputra, which is called the Jamuna in Bangladesh. So the Teesta is part of the Brahmaputra system.

  • Barrages on it: a barrage is a low dam with gates. It raises the water level and sends water into canals, but it stores very little water.
  • Gajoldoba Barrage is in West Bengal, India.
  • Dalia Barrage is in Bangladesh.
  • Both take Teesta water for irrigation.

Why the dispute arises

  • The dry season is the problem.
  • The Teesta carries very little water in the dry season.
  • Both North Bengal (India) and northern Bangladesh need this water for winter rice and irrigation at the same time.

  • India is the upstream (upper riparian) country, meaning it is nearer the source and uses the water first. Bangladesh is the downstream (lower riparian) country and depends on whatever water reaches it.

  • Result: water taken at Gajoldoba leaves less for the Dalia Barrage and Bangladesh's farmers.

The failed 2011 deal: the Centre–state angle

  • 2011: an interim (temporary) agreement to share the dry-season flow was ready to be signed during PM Manmohan Singh's visit to Dhaka.
  • West Bengal objected:
  • It feared that its own farmers would get less water.

  • The deal was not signed.

  • Why one state could block a treaty with another country:

  • Water is a state subject under India's Constitution.
  • So in practice the Centre needs the state's agreement before it can sign a river deal.

The China factor

  • Bangladesh has been considering a Chinese-backed Teesta River Comprehensive Management and Restoration Project. This would involve:
  • dredging (digging out silt to deepen the river)
  • embankments (raised banks to hold back floods)

  • reservoirs (stored water)

  • India has offered its own help to conserve the Teesta. (Status as of 2025; check for later changes.)

  • Why India worries:
  • A Chinese project would sit close to the Siliguri Corridor, called the "Chicken's Neck".
  • This is the narrow strip of land that connects mainland India to the North-East.
  • So a question about sharing water has also become a strategic (security) question.

Where it occurs

  • Sikkim (India): the source, in the north Sikkim glaciers and lakes (Tso Lhamo/Zemu area).
  • West Bengal (India): the river reaches the plains near Sevoke, flows past Jalpaiguri, and is tapped at the Gajoldoba Barrage. The dry-season water is needed for irrigation in North Bengal. The Siliguri Corridor is also in this region.
  • Bangladesh: the Rangpur region, the Dalia Barrage, and the point where the Teesta meets the Brahmaputra (Jamuna).
  • Bodies and framework: there is no treaty. Talks on shared rivers go through the Joint Rivers Commission, the India–Bangladesh body set up in 1972.
  • Wider pattern: India is upstream of Bangladesh on the Ganga, Teesta and Brahmaputra, but downstream of China on the Brahmaputra.

Don't confuse with

  • Ganga Waters Treaty (1996): the Ganga has a signed treaty. It covers sharing at the Farakka Barrage, with a lean season of 1 January–31 May, 10-day blocks and a 30-year term ending in December 2026. The Teesta has no treaty, because the 2011 deal was never signed.
  • Farakka Barrage vs Gajoldoba Barrage: Farakka (Murshidabad, West Bengal, 1975) is on the Ganga. It sends water into the Hugli to flush out silt and keep Kolkata port usable. Gajoldoba is on the Teesta and takes water for irrigation.
  • Brahmaputra–China issue (Medog project): on the Brahmaputra, India is the downstream country and China is upstream. In the Teesta dispute, India is the upstream country and Bangladesh is downstream. China's role in the Teesta case is offering a project to Bangladesh, not controlling the river's source.
  • Indus Waters Treaty (1960): an India–Pakistan treaty, signed with the World Bank as a signatory [1], and in abeyance since April 2025 (put on hold, not formally ended). The Teesta is an India–Bangladesh issue and has no treaty at all.

Prelims Hooks

  • Course of the Teesta: Sikkim → West Bengal → Bangladesh, then it joins the Brahmaputra (Jamuna). Trap: it does not join the Ganga/Padma directly.
  • Barrage–country pairs: Gajoldoba is in India (West Bengal); Dalia is in Bangladesh. Both are on the Teesta.
  • The Teesta reaches the plains near Sevoke and flows past Jalpaiguri in West Bengal.
  • 2011: the interim Teesta deal was planned for PM Manmohan Singh's Dhaka visit. It was not signed because West Bengal objected.
  • Treaty status trap: Ganga has a treaty (1996). Teesta has none. The India–Bangladesh body for shared rivers is the Joint Rivers Commission (1972).
  • The strategic worry about a Chinese-backed Teesta project is its nearness to the Siliguri Corridor ("Chicken's Neck").

Mains Points

  • Centre–state tension in river diplomacy (GS-I/GS-II):
  • Water is a state subject, so West Bengal's objection stopped the 2011 deal.
  • North Bengal's irrigation needs compete with northern Bangladesh's demand for dry-season water.

  • The same problem affects the Ganga Treaty renewal due in December 2026. Possible answer: involve the states early through existing bilateral bodies.

  • Strategic angle (GS-III, security and infrastructure):

  • Bangladesh is weighing a Chinese-backed dredging, embankment and reservoir project close to the Siliguri Corridor.

  • India has offered its own help to conserve the Teesta. This shows that delays over sharing water can create space for another power to step in.

  • India's double position as a riparian country:

  • India is upstream of Bangladesh on the Teesta but downstream of China on the Brahmaputra.
  • Whatever India asks of China, such as data, transparency and consultation, Bangladesh can ask of India.
  • A fair Teesta deal would make India's case stronger when it deals with China.

Related concepts

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Sources

  1. 1Fact Sheet: The Indus Waters Treaty 1960 and the World Bankworldbank.org · tier 2