Inter-state river water disputes are more often resolved through political consensus than judicial adjudication in India. Discuss with reference to the Sone river water-sharing agreement between Bihar and Jharkhand.

Water is a State subject (Entry 17, List II), while inter-state rivers fall under Entry 56, List I, and Article 262 bars ordinary courts from adjudicating such disputes. Yet the tribunal route has proved slow, pushing India towards negotiated settlements — as the 2026 Bihar–Jharkhand Sone pact shows.

Why adjudication has underperformed

• Nine tribunals have been constituted under the Inter-State River Water Disputes Act, 1956; several awards, including Ravi-Beas, KWDT-II and Vansadhara, remain unpublished, and the Mahanadi tribunal is still adjudicating [3].
• Ad hoc, dispute-by-dispute tribunals with no fixed timeline stretch proceedings across decades (Cauvery being the classic case) [3].
• The ISRWD (Amendment) Bill, 2019, proposing a single permanent tribunal with a Dispute Resolution Committee for prior mediation, lapsed — leaving the older architecture intact [2].

Consensus as the working alternative: the Sone case

• The 1973 Bansagar Agreement among Bihar, UP and MP apportioned 14.25 MAF of Sone water, with 7.75 MAF to undivided Bihar; Jharkhand's creation in 2000 left this share contested for 26 years [1].
• Consensus was built politically at the 27th Eastern Zonal Council meeting at Ranchi, and the MoU was signed in New Delhi in the presence of the Union Home Minister and the Jal Shakti Minister — Bihar 5.75 MAF, Jharkhand 2 MAF [1][4].
• Zonal Councils, statutory bodies under Part III of the States Reorganisation Act, 1956, thus functioned as cooperative-federal forums rather than adversarial ones [5].
• Outcomes are tangible: expanded irrigation and drinking water security in drought-prone south Bihar and the Jharkhand plateau [1].

Limits of consensus

• It depends on political goodwill and Centre-state alignment; where basins are water-scarce and electorally sensitive, negotiation has repeatedly collapsed into litigation.

Negotiated settlements succeed where tribunals stall because they convert a zero-sum legal contest into a shared-benefit bargain. Institutionalising this — through a permanent tribunal with mandatory mediation, basin-level data transparency and regular Zonal Council use — would make the Sone model replicable, advancing the cooperative federalism the Constitution envisages.