Brahmaputra Water Dispute

Source: Indian Express
GS II: India and its Neighborhood Relations

Why in the News?

India’s major transboundary rivers such as the Brahmaputra, Sutlej and Indus originate in or pass through territories controlled by China. Concerns over China’s control of hydrological data, construction of dams and lack of a binding water-sharing framework have renewed the debate on India–China river cooperation.

News in Brief

• India and China do not have a comprehensive water-sharing treaty and have relied mainly on non-binding arrangements for flood-season hydrological data sharing, making cooperation vulnerable to changes in bilateral relations.
• China’s construction of the Medog mega hydropower project on the Yarlung Tsangpo, near the point where the river enters India as the Siang, has raised concerns about downstream water flows, flooding, ecological impacts and seismic risks.
• Past interruptions in hydrological data sharing, particularly during periods of India–China tensions, highlight the limitations of relying on temporary and non-binding mechanisms for managing transboundary rivers.
• The issue underscores the need for greater transparency, real-time information sharing and stronger institutional cooperation to treat transboundary rivers as shared resources rather than instruments of strategic leverage.

Transboundary Rivers and India’s Upstream Challenge

Several major rivers important to India originate in the Tibetan Plateau, giving China a significant upstream position.

Brahmaputra

• The Brahmaputra, known as the Yarlung Tsangpo in Tibet, enters India through Arunachal Pradesh as the Siang/Dihang, flows through Assam and then enters Bangladesh.
• Its large volume and changing flow patterns make it crucial for water security, while also contributing to recurrent floods and erosion in Assam.

Sutlej and Indus

• The Sutlej and Indus also originate in the Tibetan region.
• The Sutlej enters India through Himachal Pradesh, while the Indus flows through India before entering Pakistan.
• This geography makes cooperation with upstream countries important for managing water resources and disaster risks.

India-China Water Cooperation

• India and China do not have a comprehensive water-sharing treaty.
• Their cooperation has largely been limited to arrangements for sharing hydrological data, particularly during the flood season, and information-sharing mechanisms relating to the Brahmaputra and Sutlej.
• However, these arrangements are limited and vulnerable to political developments.
• Hydrological data sharing is not an enforceable right and can be affected by deteriorating bilateral relations.
• This creates uncertainty for India, especially because timely upstream data is important for flood forecasting in Arunachal Pradesh and Assam.

International Water Governance

• The 1997 UN Convention on the Law of the Non-Navigational Uses of International Watercourses provides important principles for managing shared rivers.
• These include equitable and reasonable utilisation, avoiding significant harm to other countries, cooperation among riparian states and the exchange of relevant information.
• India and China are not parties to the Convention.
• Consequently, the Brahmaputra does not have a strong legally binding framework governing the responsibilities of upstream and downstream countries.
• This makes bilateral cooperation and trust particularly important.

Hydrological Data and Strategic Concerns

• Hydrological information includes data on river discharge, water levels, rainfall and sudden changes in river flow.
• Such information is essential for flood forecasting, disaster management, agricultural planning and dam operations.
• For India, access to timely data from the upper reaches of the Brahmaputra can help authorities prepare for floods and protect vulnerable communities.
• The main concern is that such information should ideally function as a shared public good rather than becoming dependent on diplomatic relations.
• Past interruptions in data sharing, including during periods of heightened India-China tensions, have highlighted the limitations of relying solely on temporary arangements.

China’s Hydropower Projects and the Medog Dam

• China’s construction of large hydropower projects on the Yarlung Tsangpo has increased India’s concerns.
• The Medog hydropower project, located near the Great Bend of the Yarlung Tsangpo before the river enters Arunachal Pradesh, is expected to have a proposed capacity of around 60 GW.
• India’s concerns relate to the possible impact on downstream river flows, flood patterns, sediment movement and the fragile Himalayan ecosystem.
• The lack of complete transparency regarding dam operations further adds to uncertainty.
• China, however, maintains that such projects fall within its sovereignty and are intended to meet energy and development requirements.

Tibet and Asia’s Water Security

• The Tibetan Plateau is often called the “Water Tower of Asia” because several major Asian rivers originate there.
• These include the Brahmaputra, Indus, Sutlej, Mekong, Salween, Yangtze and Yellow River.
• Control over the upper reaches of these rivers gives China considerable strategic importance in regional water politics.
• Climate change, glacial melt and increasing infrastructure development are likely to make water cooperation even more important in the future.

Need for Cooperation

• The issue ultimately extends beyond dams and water sharing.
• It concerns information, trust, transparency and institutional cooperation between upstream and downstream countries.
• International examples such as cooperation in the Senegal River basin show cooperative transboundary water management.
  • Four West African countries jointly manage dams on the Senegal River by treating them as “common and indivisible property”.
  • This demonstrates that countries sharing a river can,
    • Pool sovereignty
    • Share infrastructure
    • Cooperate in dam management
    • Develop institutional mechanisms
    • Treat the river as a shared resource rather than purely a national asset.
• Mekong River Commission is also an example of institutionalized cooperation among riparian countries.
  • Such mechanisms promote dialogue, information sharing and coordinated management of shared rivers.
• The absence of a similarly strong and comprehensive institutional mechanism in the Brahmaputra basin remains a major challenge.
• For India, the challenge is to improve domestic flood preparedness while simultaneously working towards more predictable data sharing, scientific cooperation and institutional mechanisms for managing transboundary rivers.

Way Forward and Conclusion

Transboundary rivers should be viewed not merely as strategic assets but as shared ecological systems requiring cooperation between upstream and downstream countries.

For India, greater transparency in hydrological data sharing, stronger institutional mechanisms and improved domestic flood preparedness are essential. Building trust and cooperation around shared rivers can help transform water from a potential source of geopolitical tension into an instrument of regional stability and sustainable development.

UPSC Prelims and Mains Practice Question

Consider the following statements regarding India–China transboundary rivers:

1. The Brahmaputra is known as the Yarlung Tsangpo in Tibet.
2. India and China have a comprehensive bilateral water-sharing treaty governing the Brahmaputra.
3. The Medog hydropower project is being developed on the Yarlung Tsangpo in Tibet.
4. The 1997 UN Watercourses Convention deals with the non-navigational uses of international watercourses.

Which of the statements given above are correct?

A) 1, 2 and 3 only

B) 2, 3 and 4 only

C) 1, 3 and 4 only

D) 1, 2, 3 and 4

Answer: 1, 3 and 4 only.

Mains Practice Question

Q. Transboundary rivers are increasingly emerging as a source of both cooperation and conflict among neighbouring countries. Discuss the challenges involved and suggest measures to promote effective transboundary water governance. (250 words)

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