Bihar and Jharkhand Sign Historic MoU for Sone River Water Distribution

Bihar Chief Minister Samrat Choudhary and Jharkhand Chief Minister Hemant Soren signed a Memorandum of Understanding (MoU) on September 1, 2026, for the equitable sharing of Sone river water. The bilateral agreement establishes a formal framework to resolve long-standing water allocation issues between the two neighbouring states.

Inter-state river water disputes fall under Article 262 of the Indian Constitution, which empowers Parliament to enact laws for the adjudication of disputes relating to waters of inter-state rivers or river valleys. The Sone River, a major southern tributary of the Ganga, originates at Amarkantak in Madhya Pradesh before flowing through Chhattisgarh, Jharkhand, and Bihar.

Under the newly signed MoU, mechanisms for monitoring discharge rates, reservoir storage levels at Rihand and Indrapuri Barrage, and seasonal irrigation releases were mutually agreed upon. The Sone basin covers over 71,000 square kilometres, providing vital irrigation to agricultural belts in southwestern Bihar and industrial water supply to Jharkhand's mining hubs.

Harmonious water sharing prevents protracted litigation before tribunals or the Supreme Court, ensuring agricultural stability in the region. Exam aspirants should note constitutional provisions under Article 262, Inter-State River Water Disputes Act 1956, and Sone river geography for Prelims, while analyzing inter-state federal cooperative mechanisms for Mains GS-2.