Tamil Nadu is set to benefit from a surplus of Cauvery water for the water year spanning June 2025 to May 2026. The state has recorded significantly higher water inflows than stipulated, ensuring a more comfortable water supply situation.
The Chenab Times has learned that at Billigundulu, a key monitoring point for Cauvery water, the state received approximately 330 thousand million cubic feet (tmc ft.). This figure stands in stark contrast to the 177.25 tmc ft. allocated to Tamil Nadu as per the Cauvery Water Disputes Tribunal’s final award of 2007, a figure later amended by the Supreme Court in its 2018 judgment.
This substantial surplus is a welcome development for Tamil Nadu, a state often grappling with water scarcity, particularly in its agricultural and urban centers. The increased availability of Cauvery water is expected to bolster irrigation efforts, replenish reservoirs, and ease the pressure on drinking water supplies across various districts.
The Cauvery Water Disputes Tribunal was established to adjudicate the complex water-sharing disputes between the riparian states of Karnataka, Tamil Nadu, Kerala, and Puducherry. Its final award, implemented through subsequent Supreme Court directives, outlines specific water-sharing arrangements based on inflow patterns and the needs of each state.
For decades, the sharing of Cauvery waters has been a contentious issue, often leading to inter-state tensions and legal battles. The tribunal’s award and the Supreme Court’s interventions aimed to provide a framework for equitable distribution. However, variations in monsoon patterns and the seasonal flow of the river have frequently led to disputes over compliance and allocation.
The current surplus indicates a favorable hydrological situation during the monitoring period. Such an outcome is typically attributed to robust rainfall in the Cauvery basin, primarily in the upper riparian states that contribute to the river’s flow. The water thus released and measured at Billigundulu is then distributed downstream as per the established formula.
Officials in Tamil Nadu will now likely assess the optimal utilization of this surplus water. This includes strategizing for agricultural sowing seasons, managing groundwater recharge initiatives, and ensuring adequate reserves for the dry periods ahead. The surplus could potentially alleviate the need for stringent water usage restrictions in the coming months.
The consistent reporting of surplus water for Tamil Nadu in recent years, as indicated by this latest development, suggests a more stable period in the river’s water availability. However, long-term water security remains a critical concern, and sustainable water management practices across the basin continue to be essential.
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The Chenab Times News Desk
