Sone River Water-Sharing MoU: Bihar-Jharkhand Dispute, Inter-State River Governance and Cooperative Federalism Category GS Date Data rule Polity, Geography, Water Resources and Federalism GS Paper I, GS Paper II, GS 4 September 2026 30+ numerical facts Paper III
WHY IN NEWS
- Bihar and Jharkhand moved to resolve a long-running Sone River water-sharing dispute through an MoU after about 25 years of disagreement, bringing inter-State river governance into focus.
- For UPSC, connect the current trigger with its static syllabus base, institutional mechanism, numerical anchors and implementation risks.
- The analytical test is to separate announcement or discovery from input, process, output and final outcome.
TOP DATA & FACTS FOR UPSC
- Sone is a major southern tributary of the Ganga.
- It rises in the Amarkantak region of central India.
- The river flows through or along parts of Madhya Pradesh, Uttar Pradesh, Jharkhand and Bihar before joining the Ganga system.
- The current dispute was reported as lasting about 25 years.
- Water-sharing affects irrigation, drinking water and seasonal river management.
- Inter-State river disputes involve both hydrology and federal institutions.
- Article 262 of the Constitution concerns adjudication of inter-State river-water disputes.
- Parliament enacted the Inter-State River Water Disputes Act, 1956.
- The River Boards Act was also enacted in 1956.
- River flows vary seasonally, so fixed allocations may need hydrological rules.
- Basin-level data sharing is essential for trust.
- Groundwater, reservoirs and surface-water allocation should be planned together rather than in isolation.
- Current-affairs date: 4 September 2026.
- Use at least 3 analytical scales: local or sectoral, national and comparative or global.
- Distinguish 4 policy stages: input, process, output and outcome.