New Delhi, India – June 24, 2025 – India has announced its intention to renegotiate the Ganga Water Treaty with Bangladesh, set to expire in 2026, to address growing developmental water needs. According to reporting by The New Indian Express, the proposed new agreement will span 10 to 15 years—shorter than the current 30-year framework—allowing both nations greater flexibility to adapt to future requirements. This shift marks a significant recalibration of India's water diplomacy as it seeks to balance regional cooperation with domestic priorities.
TL;DR
- India proposes renegotiating the 1996 Ganga Water Treaty before its 2026 expiry, seeking a 10-15 year agreement instead of 30 years.
- The new framework aims to secure increased water allocation for India's agricultural, industrial, and urban development needs in states like West Bengal and Bihar.
- Bangladesh has historically received less than its stipulated share during dry seasons and views the current treaty as inequitable.
- Climate change and geopolitical tensions—including the Indus Waters Treaty suspension with Pakistan—have prompted India's strategic rethink.
- Successful renegotiation could set a precedent for cooperation on other transboundary rivers, while failure risks escalating regional tensions.
The 1996 Ganga Water Treaty: Three Decades of Governance
Signed on December 12, 1996, the Ganga Water Treaty has governed water sharing between India and Bangladesh for nearly three decades. The agreement focuses primarily on water allocation at the Farakka Barrage during the dry season (January to May), a critical period when river flows diminish. For India, the treaty has served as a cornerstone of bilateral relations; for Bangladesh, it has been a source of persistent complaint.
The original treaty was designed to address immediate post-independence tensions over river management. However, the framework was built on assumptions about water availability and development patterns that have shifted substantially. India's population has grown significantly since 1996. Agricultural productivity demands have intensified across northern India. Urban centers like Delhi, Kolkata, and smaller cities have expanded their water infrastructure needs. These pressures have created a structural mismatch between the treaty's allocations and contemporary reality.
Why India Is Pushing for Renegotiation Now
A senior official from India's Ministry of External Affairs, cited in The New Indian Express, revealed that India initially considered extending the treaty for another 30 years. That approach was abandoned. Geopolitical tensions—particularly the suspension of the Indus Waters Treaty with Pakistan following security incidents—prompted strategic recalibration. India's government concluded that longer-term, inflexible water-sharing agreements expose the nation to political leverage by downstream states during periods of tension.
States like West Bengal and Bihar have actively lobbied the central government for increased water access. West Bengal's industrial sector, particularly steel and thermal power plants, depends heavily on Ganga water. Bihar's agricultural sector—which employs millions—requires predictable irrigation supplies. Both states argue that current allocations are insufficient for their developmental trajectories. The central government has internalized these demands and positioned the renegotiation as a response to legitimate domestic needs.
The proposed 10-15 year duration represents a deliberate strategic choice. Shorter agreements allow India to reassess its position periodically, adjust allocations based on updated hydrological data, and respond to climate variability without being locked into terms that may become disadvantageous. This approach also signals to neighboring nations that India is willing to adopt flexible frameworks—though recent treaty suspensions have complicated that messaging.
Key Features of the Proposed Treaty Framework
| Feature | Current Treaty (1996) | Proposed Treaty (2026+) |
|---|---|---|
| Duration | 30 years (renewable) | 10-15 years (adaptive) |
| Primary Focus | Dry-season allocation at Farakka Barrage | Dry-season allocation + climate resilience provisions |
| Water Allocation Philosophy | Fixed percentages | Flexible, based on hydrological assessments |
| Revision Mechanism | Every 5 years (technical reviews only) | Proposed to include periodic reassessment of allocations and climate impacts |
| Climate Adaptation Clause | Absent | Proposed to address flow variability |
The shorter duration is the most visible change, but the underlying philosophy matters more. India is proposing that both nations treat water allocation as a dynamic variable rather than a static entitlement. This approach acknowledges that monsoon patterns, snowmelt timing, and groundwater availability fluctuate—sometimes dramatically—from year to year. A flexible framework theoretically allows both parties to adjust without breach claims.
India has communicated to Bangladesh its need for a larger share of Ganga waters. While exact percentages have not been publicly disclosed, reports suggest India may seek increased allocations to meet the water demands submitted by West Bengal and Bihar to the central government. These internal assessments are likely informing India's negotiating position, though the specific figures remain subject to diplomatic discussion.
Bangladesh's Historical Grievances and Current Concerns
Bangladesh enters renegotiation from a position of historical disadvantage. Water management experts have documented that Bangladesh has frequently received less than its stipulated share during dry seasons—a pattern that has persisted across multiple years of the treaty's implementation. During severe dry seasons, the shortfall has been acute. The Sundarbans delta, a UNESCO World Heritage site and critical ecosystem, has suffered ecological stress from reduced freshwater flow. Salinity intrusion has damaged agricultural lands. Fishing communities have lost livelihoods as a result of altered water availability.
The ouster of former Prime Minister Sheikh Hasina in 2024 has altered Bangladesh's political calculus. Hasina had maintained relatively cooperative relations with India on water issues, accepting some asymmetries in exchange for broader strategic partnership. The new government faces domestic pressure to take a harder line. Bangladesh's civil society, agricultural sector, and environmental advocates are united in opposing any reduction in water allocation.
Bangladesh also points to the stalled Teesta River water-sharing agreement, where India has withheld a final treaty for over a decade despite initial frameworks being drafted. This history makes Bangladesh skeptical that India will negotiate in good faith on the Ganga. The combination of the Hasina ouster, Teesta delays, and now the Ganga renegotiation has created a narrative in Bangladesh of Indian water hegemony.
Climate Change: The Underlying Crisis
Climate change has fundamentally altered the Ganga's hydrology. The river's flow patterns have become more erratic. Monsoon precipitation has intensified in some years, causing severe flooding in Bihar and West Bengal. In other years, dry-season flows have dropped below historical averages, straining both nations' water security. Himalayan snowmelt—which historically sustained the Ganga during dry months—is occurring earlier and with less volume as glaciers retreat.
Research by the International Centre for Integrated Mountain Development (ICIMOD) warns that river flows could decrease significantly in coming decades if current climate trends continue. The Ganga supports approximately 250 million people across India and Bangladesh. A sustained reduction in flow would affect drinking water, irrigation, hydropower, and navigation. Both nations have a shared interest in adaptive management, yet their current treaty framework lacks mechanisms for joint climate response.
The proposed renegotiation presents an opportunity to embed climate adaptation into the agreement. This could include provisions for drought-year contingencies, joint flood management protocols, and data-sharing on snowmelt and monsoon forecasts. However, such provisions require trust—a commodity currently in short supply between New Delhi and Dhaka. The integration of climate considerations into water treaties remains an emerging practice in international water governance, and the Ganga renegotiation could serve as a model for how transboundary river basins address environmental change.
Support from Indian States and Internal Coordination
West Bengal has been the most vocal state supporter of renegotiation. The state government has participated in internal Ministry of External Affairs discussions and submitted formal assessments of its water requirements. State officials have confirmed to media that West Bengal requires additional water to meet industrial demands, particularly from steel and power sectors, and to secure drinking water for cities like Kolkata and surrounding regions.
Bihar has similarly emphasized the importance of increased allocation. The state's agricultural sector, which depends on canal irrigation fed by Ganga water, faces chronic shortages during dry years. Farmers have organized protests demanding government action to secure more water. These domestic pressures have given India's negotiating team political cover to pursue a more assertive position with Bangladesh.
The central government has also coordinated with the Jal Shakti Ministry (water resources) and the Ministry of External Affairs to align technical and diplomatic positions. This coordination suggests India is preparing a comprehensive proposal rather than making ad-hoc demands. However, the extent to which India has consulted environmental groups, civil society, or downstream communities in Bangladesh remains limited and subject to criticism from transboundary water governance advocates.
Geopolitical Context: The Indus Waters Suspension and Regional Implications
India's suspension of the Indus Waters Treaty with Pakistan in September 2024, following security incidents, created a precedent that shapes the Ganga renegotiation. The Indus suspension demonstrated that India is willing to reassess water treaties in response to security concerns. This move alarmed water-dependent nations across South Asia, including Bangladesh.
Bangladesh's government has privately expressed concern that India might use water as leverage in future diplomatic disputes. The timing of the Ganga renegotiation—occurring in a period of strained India-Bangladesh relations—has amplified these concerns. Some observers in Dhaka view the renegotiation as India capitalizing on Bangladesh's political instability to extract concessions.
Conversely, India's strategic community argues that shorter-term treaties provide more stability than long-term agreements that can become liabilities. This debate reflects a fundamental disagreement about how to structure transboundary water governance in an era of geopolitical volatility and climate uncertainty. The question of whether flexible, shorter-term frameworks or longer-term commitments better serve cooperation remains contested among water policy experts.
Technical Discussions and the Joint Rivers Commission
The Joint Rivers Commission, the bilateral body responsible for water management, has conducted multiple technical meetings to review water flow data at Farakka Barrage. These technical discussions are the foundation for formal negotiations. Engineers and hydrologists from both nations present data on seasonal flows, compare measurements, and identify discrepancies. The outcomes of these meetings inform the positions that diplomats and ministers will take in formal treaty negotiations.
India has reportedly shared updated hydrological assessments with Bangladesh, arguing that newer datasets justify a revision of allocations. Bangladesh has countered with its own studies, emphasizing that historical shortfalls and climate variability require more conservative allocations to ensure food security. The technical discussions have become a proxy for the underlying political disagreement about how to balance development needs with equity and environmental sustainability.
Next Steps
The 2026 expiry deadline creates a hard constraint. Both nations must either renegotiate a new treaty, extend the current agreement, or risk operating without a formal framework—a scenario that could trigger water disputes and diplomatic crises. India's government has signaled its intention to complete negotiations by mid-2026, allowing time for ratification by both parliaments.
The negotiation process will likely unfold in phases. Technical discussions will continue through 2025, establishing agreed-upon data and hydrological baselines. Diplomatic negotiations will intensify in late 2025 and early 2026. Both nations will face domestic pressure—India from states demanding more water, Bangladesh from civil society demanding equitable treatment. The final agreement will reflect the balance of these pressures.
Success would require both nations to compromise. India might accept a longer-term agreement (20 years) in exchange for modestly increased allocations. Bangladesh might accept some increase in India's share in exchange for stronger climate adaptation provisions and dispute-resolution mechanisms. Failure would leave both nations operating under an expired treaty, creating legal ambiguity and political risk. The renegotiation of the Ganga Water Treaty will have implications not only for bilateral relations but also for how transboundary water governance evolves across South Asia in response to climate change and development pressures.
Sources
- The New Indian Express – Union Government Presses Bangladesh on Review of Ganga Treaty
- Hindustan Times – India-Bangladesh Prepare to Renew Ganga Treaty
- Scroll.in – Ganga Water Treaty: Can India-Bangladesh Renegotiate Equal Sharing Climate-Resilient Deal
- Indian Express – Indo-Bangla Meet on Ganga Water Treaty Begins in Kolkata
- International Centre for Integrated Mountain Development (ICIMOD)
