A dry spell along the Cauvery

The Cauvery River originates in Talakaveri, Kodagu district, Karnataka, and flows through Karnataka, Tamil Nadu, Kerala, and Puducherry. The article mentions the Krishna Raja Sagara (KRS) reservoir, a crucial infrastructure built across the Cauvery near Mysuru. The situation illustrates the geographical challenge of water distribution within an irrigation network; farmers at the "tail end" of the Visvesvaraya irrigation canal are the most vulnerable as water pressure drops and supply is often exhausted by upstream users before reaching them. This geographical reality exacerbates the impact of delayed monsoons or deficit rainfall. UPSC often tests knowledge of river systems, their tributaries (like Hemavati, Kabini, Bhavani for Cauvery), and major dams/reservoirs on these rivers.

The dry spell in the Cauvery basin inevitably re-ignites the inter-state river water dispute between Karnataka and Tamil Nadu. The Constitution addresses this under Article 262, which empowers Parliament to adjudicate disputes related to inter-state rivers and river valleys. Parliament enacted the Inter-State River Water Disputes Act, 1956 under this provision. The long-standing Cauvery dispute led to the formation of the Cauvery Water Disputes Tribunal (CWDT), whose final award was modified by the Supreme Court in 2018. To implement this award, the central government established the Cauvery Water Management Authority (CWMA) and the Cauvery Water Regulation Committee (CWRC). When rainfall is deficit, these bodies face the complex task of enforcing distress-sharing formulas, often leading to political friction between the riparian states, a classic challenge of cooperative federalism.

The plight of the farmer underscores the deep economic vulnerability of Indian agriculture, which remains heavily dependent on the Southwest Monsoon. The cultivation of water-intensive crops like paddy in areas prone to water scarcity creates severe economic risks. The farmer's potential loss of ₹8,000 spent on raising the nursery highlights the sunk costs and the lack of a reliable safety net for marginal farmers facing climatic uncertainties. This situation emphasizes the urgent need for a shift towards climate-resilient agriculture, promoting less water-intensive crops (like millets under the National Food Security Mission), and improving water use efficiency through micro-irrigation schemes (like Pradhan Mantri Krishi Sinchayee Yojana). The recurring water crisis in the Cauvery basin affects agricultural productivity, farm incomes, and ultimately, regional economic stability.