Transboundary Water Governance In South Asia

South Asia’s water landscape is defined by a sharp contradiction. The region contains major freshwater reserves and extensive shared river systems, yet it remains deeply water-stressed because rising demographic, economic, ecological, and political pressures have outpaced cooperative management.

Regional Setting And Scale Of The Problem

• Demographic and Geographic Weight: South Asia consists of India, Pakistan, Bangladesh, Sri Lanka, Afghanistan, Nepal, Bhutan, and the Maldives, and is home to about 1.8 billion people, or 23 percent of the world’s population. The region is classified among areas facing high to extremely high water stress.
• Severity of Stress Within the Region: Pakistan and Afghanistan are identified as the most water-stressed countries in South Asia. This places the region in the same broad category of water pressure as Middle-East Asia and Northern Africa.
• Scarcity Amid Freshwater Reserves: South Asia’s water scarcity appears striking because the Himalayan and Hindu Kush ranges, which separate the region from the rest of Asia, hold vast freshwater reserves. Even so, scarcity remains acute across much of the region.
• Underlying Causes: The growing gap between water extraction and water availability has been shaped over decades by population expansion, rapid industrial growth, urbanisation, and weak environmental concern. These long-term trends have steadily intensified regional water stress.

Core Water Challenges Across South Asia

• Shortage and Distributional Inequality: South Asia faces serious shortages of water for both drinking and agriculture. Access is also unevenly distributed between richer and poorer groups, as well as across different states and sub-regions.
• Groundwater Pressure: Overuse and rapid depletion of groundwater have emerged as major concerns. This has made regional water insecurity more severe and more difficult to manage.
• Declining Water Quality: Surface water pollution and contamination have contributed to widespread water-borne disease and mortality. Water quality degradation has therefore become a major part of the region’s larger water crisis.
• Exposure to Extremes: Frequent floods and droughts continue to affect the region. The problem is compounded by excessive agricultural use of water and by climate change, which threatens to alter rainfall patterns, river courses, and sea levels.

Shared Rivers And Regional Interdependence

• Extent of Transboundary Rivers: India, Pakistan, Bangladesh, Bhutan, Nepal, and Afghanistan together share twenty major rivers. This makes water governance in South Asia inherently cross-border in nature.
• Indus and Ganges-Brahmaputra Networks: The Indus basin, comprising the Indus, Ravi, Beas, Sutlej, Jhelum, and Chenab, links India, Pakistan, and China. The Brahmaputra and Ganges basins connect China with India, Nepal, Bangladesh, and Bhutan.
• Other Important Linkages: Nepal and India are connected through the Kosi, Gandaki, and Mahakali rivers. India and Bangladesh share the Brahmaputra, Ganges, and Teesta, while Pakistan and Afghanistan are linked through the Kabul basin.
• Tibetan Plateau Connection: Two of the three largest river systems in the region, the Indus and Brahmaputra, originate from the Tibetan plateau in southwestern China. The Ganges system is also tied to the Tibetan plateau because many of its midstream tributaries rise there, although the main river begins on the Indian side of the Himalayas.

Major Bilateral Issues in River Management

• India and Bangladesh: Teesta water sharing remains a contentious issue, especially because the river is considered the lifeline of several districts in North Bengal. Bangladesh has sought an equitable sharing arrangement similar to the Ganga Water Treaty of 1996, but such an outcome has not been reached.
• India and Nepal: Cooperation between India and Nepal has centred on agreements over rivers such as the Kosi, Gandaki, Karnali, and Mahakali, mainly for large irrigation and hydroelectric projects involving dams or barrages. However, apart from the Kosi barrage, no project has been completed.
• India and Pakistan: The Indus Waters Treaty of 1960 allocated the eastern rivers—Beas, Ravi, and Sutlej—to India and the western rivers—Indus, Chenab, and Jhelum—to Pakistan. Although the treaty is often praised for surviving three post-independence wars, it has also been the subject of disputes over projects such as Baglihar, Kishanganga, and recent hydroelectric projects on the Chenab.
• China and Downstream States: China’s upstream position gives it a clear advantage in constructing dams and diversion infrastructure that can alter water flows. Its dam-building activities, including a proposed mega dam on the Yarlung Zangbo near the Line of Actual Control in Tibet, have become a source of concern for lower riparian states.

Existing Treaty Structure And Its Limits

• Bilateral Treaty Network: India has entered into bilateral water-sharing arrangements with Pakistan, Bangladesh, and Nepal. These include the Indus Waters Treaty of 1960, the Ganges Treaty of 1996, and the India–Nepal treaties of 1954, 1959, and 1996 relating to the Kosi, Gandaki, and Mahakali rivers.
• Absence of a Kabul Framework: No formal treaty governs water-sharing between Pakistan and Afghanistan over the Kabul River. This reveals a major institutional gap in the region’s transboundary water regime.
• Lack of Common Principles: The region’s bilateral treaties do not rest on a uniform or consistently fair set of principles, and their operational provisions are not mutually aligned. Several clauses also depart from accepted international legal standards, precedents, and instruments.
• No Regional Commitment to International Convention: No South Asian country has ratified the 1997 UN Convention on the Law of the Non-Navigational Uses of International Watercourse. As a result, the region lacks a shared formal commitment to the convention’s framework for protecting, preserving, and managing transboundary water resources through equitable and reasonable use.

Structural Obstacles to Effective Transboundary Governance

• Geopolitical Distrust: A comprehensive multilateral framework has not emerged partly because of persistent India–Pakistan tensions linked to Kashmir and cross-border terrorism. These tensions have made regional consensus on rivers and aquifers far more difficult.
• Ecological and Climate Risks: Climate change, extreme events, landslides, forest fires, and other ecological threats have created a new layer of governance difficulty. Retreating Himalayan glaciers and snowlines add to the uncertainty surrounding future water availability.
• Treaties Outpaced by Change: Existing bilateral agreements were not structured to deal with contemporary pressures arising from climate change, demographic transition, and technological change. Their limitations are becoming more visible as regional water challenges evolve.
• Data Opacity: Upper riparian states in South Asia often withhold actual water-flow information during lean summer months in order to retain a larger share of river water. This weakens trust and runs contrary to bilateral commitments and international norms.
• India’s Position as Middle Riparian: India has adopted different distributive principles in its dealings with neighbouring countries depending on whether it is positioned upstream or downstream on a given river. This variation has contributed to inconsistency across bilateral water arrangements.
• China’s Strategic Incentives: As an upper riparian state and a major power, China has little strategic incentive to promote or join a multilateral water-sharing agreement involving its South Asian neighbours. This further limits prospects for a region-wide framework.

Domestic Governance Constraints Within the Region

• Water as a State Subject: Because water is treated as a state subject, states exercise extensive authority over water governance. Yet the overall results at the national level remain unconvincing in terms of long-term security and sustainability.
• Weak Institutional Capacity: Poor devolution and weak institutions have reduced the effectiveness of water governance. These institutional shortcomings have limited confidence in long-term water management outcomes.
• Interstate Coordination Problems: Large plans relating to river rejuvenation, inter-basin transfer, inland navigation, and irrigation development continue to face serious coordination problems between states. These internal obstacles also weaken broader regional water management efforts.
• Decline of River Boards Act Mechanism: The River Boards Act of 1956, intended to enable inter-state river cooperation and provide a tribunal-based dispute resolution process, is now almost defunct. This has reduced the institutional basis for coordinated internal water governance.
• Pathways Towards a Better Regional Framework
• Need for Regional Integration: South Asia can respond more effectively only through an integrated regional approach to water management and a multilateral agreement. Such a framework could also help address soil erosion, unsustainable farming practices, overuse of natural resources, and inequitable distribution of water.
• Ministerial Working Group: One proposed step is the creation of a working group of ministers from all South Asian states for purposeful dialogue on transboundary water resources and their sustainable use. This could provide a more regular political mechanism for cooperation.
• Shared Regional Database: South Asian countries need to build and regularly update a regional database of freshwater resources. Such a system would support more rational policymaking and better contingency planning for water scarcity.
• Transparent Data Commitments: Governments in the region need to commit to credible and transparent disclosure of transboundary river-flow data. Trustworthy data-sharing is essential for any serious cooperative framework.
• Joint Climate Action: There is a clear need for cooperative action on the effects of climate change on the Himalayan ecosystem and glacial freshwater reserves. Without joint action, the long-term stability of regional water systems will remain uncertain.
• Broader Stakeholder Engagement: Civil society organisations, international bodies, and UN agencies need to be involved in addressing climate-linked water challenges. Public sensitisation is also necessary so that citizens and policymakers recognise the gravity of water stress and climate change in South Asia.

Conclusion

Transboundary water governance in South Asia has become a question not just of river-sharing, but of sustainability, justice, institutional credibility, and regional stability. Meaningful progress will depend on whether South Asian states can move beyond fragmented bilateralism and narrow strategic calculation to create cooperative structures capable of managing shared waters in a fair and durable manner.