Why in the News
The State government of Bihar has opposed renewal of the 1996 Ganga Waters Treaty between India and Bangladesh, which governs water-sharing at the Farakka Barrage and is due to expire in December 2026, citing floods and river siltation in Bihar that it links to the barrage’s operation. The treaty’s renewal is a matter for the Union government to negotiate with Bangladesh, but a State government’s opposition to renewing it creates a diplomatic bind: the Centre must weigh a State’s domestic flood and siltation concerns against the foreign-policy cost of not renewing, or of renegotiating, a treaty that has anchored river-water diplomacy with Bangladesh for three decades.
What does the 1996 Ganga Waters Treaty govern, and why does it matter now?
- Water-sharing formula at the Farakka Barrage: The 1996 Ganga Waters Treaty sets out a formula for sharing the Ganga’s flow between India and Bangladesh at the Farakka Barrage, the structure built to divert water into the Hooghly river to keep the Kolkata port navigable.
- A 30-year term expiring in December 2026: The treaty was signed for a 30-year term, which brings it up for renewal or renegotiation in December 2026, the deadline against which Bihar’s opposition is now being weighed.
- Bihar’s flood and siltation grievance: Bihar’s government links flooding and riverbed siltation in the State to the barrage’s operation, arguing that the structure alters the Ganga’s natural flow and sediment pattern in ways that worsen the State’s annual flood exposure.
Why does this create a bind for the Centre?
- Water-sharing treaties are a Union subject, but their effects are State-specific: The Union government negotiates and signs river-water treaties with foreign countries under its exclusive foreign-affairs competence, but the physical effects of a structure like the Farakka Barrage fall on a specific State’s territory, giving Bihar a stake in a decision it does not control.
- Non-renewal carries a diplomatic cost with Bangladesh: Allowing the treaty to lapse without a replacement arrangement would remove a settled water-sharing formula that has avoided a recurring bilateral dispute over the Ganga’s flow for three decades, a relationship India has reasons to preserve given its broader strategic stake in Bangladesh.
- Renegotiation on Bihar’s terms may not be acceptable to Bangladesh: Any renegotiation that reduces Bangladesh’s guaranteed share to address Bihar’s siltation concerns would need Bangladesh’s agreement, and Bangladesh’s own dry-season water needs make it unlikely to accept a formula that leaves it worse off.
Conclusion
Bihar’s opposition to renewing the 1996 Ganga Waters Treaty puts the Centre in the position of balancing a State’s flood and siltation grievance against the diplomatic cost of disrupting a three-decade-old water-sharing arrangement with Bangladesh ahead of the treaty’s December 2026 expiry. How the Centre resolves this before the deadline will be an early test of how India manages river-water diplomacy where a State’s domestic concerns and a neighbour’s expectations pull in different directions.
Back2Basics: Farakka Barrage
- A barrage across the Ganga in West Bengal, commissioned in 1975, built primarily to divert water into the Hooghly river during the dry season to keep the Kolkata port’s approach channel navigable.
- Its construction and downstream flow effects have been a recurring point of contention with Bangladesh, which lies further downstream on the Ganga.
- The 1996 Ganga Waters Treaty was signed to formalise a 30-year water-sharing formula at the barrage between India and Bangladesh, replacing earlier short-term, ad hoc sharing arrangements.
- Also cited within India, including by Bihar, as a factor in upstream siltation and altered flood patterns on the Ganga.
Matching Previous Year Question
“[2026] Match:
A. Mangdechhu Hydroelectric Project
B. Restoration of Stor Palace
C. District Hospital at Dickoya
D. Institute of Security and Law Enforcement Studies
1. Maldives 2. Afghanistan 3. Bhutan 4. Sri Lanka
(a) A-1, B-4, C-2, D-3
(b) A-3, B-2, C-4, D-1
(c) A-3, B-4, C-2, D-1
(d) A-1, B-2, C-4, D-3
ANSWER: B”
