To what extent have transboundary river water disputes contributed to tensions in India’s relations with its neighbouring countries, and what diplomatic, institutional, and legal mechanisms could be employed to mitigate such conflicts and promote cooperative water governance in South Asia?

~ Polity Prober

Transboundary River Water Disputes and Their Impact on India’s Neighbourhood Relations: Challenges and Pathways to Cooperative Water Governance in South Asia

Introduction

Transboundary river water disputes have been a persistent source of tension in India’s relations with several of its neighbours, notably Pakistan, Bangladesh, Nepal, and China. As the upper riparian for many major South Asian rivers originating in the Himalayas, India occupies a strategically vital hydrological position, which makes its water-sharing practices central to regional peace, development, and diplomacy. However, issues of water scarcity, climate variability, infrastructure development, and perceived asymmetries in power and access have periodically transformed water into a source of geopolitical contestation.

This essay critically evaluates the extent to which transboundary river water disputes have affected India’s bilateral relations in South Asia and explores the diplomatic, legal, and institutional mechanisms that could be deployed to foster equitable, sustainable, and cooperative water governance in the region.

I. The Hydropolitical Context of South Asia

South Asia is one of the most densely populated and hydrologically interdependent regions in the world, with a number of major river systems—the Indus, Ganges, Brahmaputra, and Teesta—transcending multiple national borders. Yet, there is a lack of a basin-wide institutional framework, leading to fragmented governance and bilateral competition over shared resources.

Key challenges include:

  • Unequal distribution of water availability across seasons and geographies.
  • Rapid urbanization and agricultural intensification, increasing demand.
  • Glacial melt and monsoonal variability, exacerbated by climate change.
  • Asymmetries in riparian power and bargaining capabilities.

II. River Water Disputes and Bilateral Tensions

2.1. India–Pakistan: The Indus Waters Treaty

The Indus Waters Treaty (1960), brokered by the World Bank, allocated:

  • The eastern rivers (Ravi, Beas, Sutlej) to India.
  • The western rivers (Indus, Jhelum, Chenab) to Pakistan, with limited Indian use.

Despite its resilience, recent years have seen growing tensions:

  • Pakistan alleges that Indian projects like Baglihar and Kishanganga violate treaty terms by affecting downstream flow.
  • India has raised concerns about cross-border terrorism and questioned the logic of water generosity in a hostile environment.
  • In 2023, India notified Pakistan of its intent to modify the treaty, citing Pakistan’s obstruction of neutral arbitration and delay tactics.

While the treaty has withstood wars and crises, its limitations in addressing new environmental realities, emerging projects, and diplomatic breakdowns have made it increasingly contentious.

2.2. India–Bangladesh: The Teesta and Ganges Disputes

While the 1996 Ganga Water Sharing Treaty provided a formula for dry season flows, the Teesta River remains a critical unresolved issue:

  • Bangladesh demands a more equitable share of Teesta’s dry-season flow to irrigate northern districts.
  • The deal has been stalled due to opposition from West Bengal, highlighting the role of subnational politics in transboundary governance.

This impasse has strained bilateral ties and limited progress on cooperation in flood management, sediment control, and basin-wide planning.

2.3. India–Nepal: The Mahakali, Kosi, and Gandak Rivers

India and Nepal share over 6,000 rivers and tributaries, yet:

  • Agreements such as the Mahakali Treaty (1996) and earlier projects (Kosi, Gandak) are mired in mistrust, with Nepal accusing India of unilateralism and treaty violations.
  • Nepal seeks joint control and benefit-sharing, while India emphasizes hydropower cooperation and flood control.

Despite shared interests, political nationalism, lack of transparency, and absence of basin-level frameworks inhibit progress.

2.4. India–China: The Brahmaputra (Yarlung Tsangpo)

Though there is no formal water-sharing treaty, India remains concerned about:

  • China’s dam-building and diversion projects in Tibet.
  • Delayed or non-transparent data sharing, which affects flood forecasting in Northeast India.

Given the strategic opacity and broader border tensions, water issues have become an emerging frontier of insecurity in India–China relations.

III. Diplomatic and Institutional Mechanisms for Conflict Mitigation

3.1. Strengthening Bilateral Treaties and Joint Commissions

  • India could move toward updating existing treaties to reflect contemporary challenges like climate change, ecosystem services, and energy needs.
  • Empowering Joint River Commissions (JRCs)—such as the India–Bangladesh JRC—with technical autonomy, regular meetings, and public accountability can institutionalize trust.
  • Promoting confidence-building measures such as joint hydrological monitoring, early warning systems, and shared research platforms would enhance transparency.

3.2. Leveraging Multilateral Platforms and Normative Frameworks

While South Asia lacks a basin-wide treaty akin to the Mekong River Commission, India could:

  • Champion a South Asian Water Cooperation Framework under SAARC or BIMSTEC, emphasizing co-development and sustainable use.
  • Align transboundary practices with international norms such as the UN Watercourses Convention (1997) and the Helsinki Rules, which promote equitable and reasonable utilization.
  • Explore trilateral cooperation formats—India–Nepal–Bangladesh or India–Bhutan–Bangladesh—to manage shared sub-basins holistically.

3.3. Enhancing Hydro-Diplomacy and Track II Dialogue

  • Establishing Hydro-Diplomacy Missions within the Ministry of External Affairs (MEA) can help coordinate water negotiations with technical expertise.
  • Track II and III diplomacy—including dialogues among scientists, civil society, and journalists—can create non-political pathways for consensus and defuse nationalist narratives.
  • Investing in regional water data commons, accessible to all stakeholders, would reduce suspicion and enable informed decision-making.

IV. Legal and Constitutional Instruments for Better Governance

4.1. Integrating Subnational Actors

  • Indian states like West Bengal, Bihar, and Uttar Pradesh must be institutionally included in the formulation of water treaties.
  • The Inter-State River Water Disputes Act could be adapted to enable coordination with international negotiations involving shared rivers.

4.2. Legal Codification of Ecological Rights

  • India could promote legal frameworks that recognize rivers as shared ecological entities, not just utilitarian resources.
  • Principles such as no significant harm, sustainability, and inter-generational equity could be codified in bilateral treaties.

V. Challenges to Cooperative Water Governance

Despite these mechanisms, several structural and political challenges persist:

  • Asymmetry in power and technical capacity leads to unilateralism and mistrust.
  • Domestic political fragmentation—e.g., Centre–State disputes in India—complicates treaty implementation.
  • Climate-induced hydrological volatility increases unpredictability and strategic hedging.
  • Nationalist politics often frame water as a zero-sum security issue, rather than a shared developmental resource.

These factors require adaptive, inclusive, and multi-level governance frameworks, moving beyond traditional state-centric diplomacy.

Conclusion

Transboundary river water disputes have played a substantial role in generating friction in India’s bilateral relations, especially with Pakistan, Bangladesh, and Nepal, and are becoming an emerging concern with China. While India has shown commitment to treaty-based cooperation, these frameworks are often outdated, insufficiently participatory, and ill-equipped to deal with 21st-century challenges like climate change, hydroelectric expansion, and ecological degradation.

To promote a cooperative water governance model in South Asia, India must adopt a forward-looking hydro-diplomatic strategy that combines institutional reform, multilateral coordination, ecological sensitivity, and participatory federalism. Only by embedding water governance in a broader vision of regional peace, environmental justice, and shared prosperity can South Asia move from a hydro-political battleground to a hydro-diplomatic community.

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