Karnataka challenges Cauvery water-sharing award in Supreme Court citing "changed circumstances"
GS2Polity · Governance · IR· India's bilateral relations· Prelims + Mains·
Inter-state water disputes and federalism: a GS2 and GS3 case study on resource distribution.
Why in news
The State of Karnataka filed a 40-page reply in the Supreme Court challenging the Cauvery water-sharing award, arguing that current allocations are inequitable during the 2026-27 distress year.
Background
Karnataka and Tamil Nadu are the primary states involved in the dispute over the 740 tmc ft annual flow of the Cauvery River. The current award allocates 284.75 tmc ft to Karnataka and 404.25 tmc ft to Tamil Nadu.
Facts for Prelims
- FactCauvery annual flow: 740 tmc ft
- FactKarnataka's current allocation: 284.75 tmc ft
- FactTamil Nadu's current allocation: 404.25 tmc ft
- PlaceCauvery River: River shared between Karnataka and Tamil Nadu
Prelims practice question
With reference to the Cauvery water-sharing award, consider the following statements:
- The current award allocates 284.75 tmc ft to Tamil Nadu.
- The current award allocates 404.25 tmc ft to Karnataka.
- The annual flow of the Cauvery River is 740 tmc ft.
Which of the statements given above is/are correct?
- (a)2 only
- (b)3 only
- (c)1 and 2 only
- (d)2 and 3 only
Show answer
Answer: (b) 3 only — Statement 3 is correct. Statement 1 is incorrect: The current award allocates 404.25 tmc ft to Tamil Nadu. Statement 2 is incorrect: The current award allocates 284.75 tmc ft to Karnataka.
For Mains
Q. Discuss the legal and ecological complexities of inter-state water sharing in India, focusing on the challenges of adjusting historical awards to accommodate changing climatic conditions.
Dimensions to cover in your answer
- Hydrological data gap: Difficulty in quantifying real-time 'distress' levels for equitable distribution
- Judicial overreach vs Federalism: Balancing Supreme Court's role in water arbitration with state-level resource autonomy
Keywords: Inter-state water dispute · Equitable distribution · Hydrological distress · Judicial intervention · Resource federalism
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