State of Karnataka v. State of Tamil Nadu 2025 INSC 1343 - Water Sharing
Water Sharing -Every State is free to utilise water allotted to its quota in the manner it finds to be in the best interest of the State. No other State has a right to interfere with the decision regarding the management and use of water allotted to a particular State unless by such act the water allotted to that State is reduced. (Para 29)
Case Info
Case Details
- Case name: State of Karnataka by its Chief Secretary v. State of Tamil Nadu by its Chief Secretary & Others
- Neutral citation: 2025 INSC 1343
- Coram: B.R. Gavai, CJI; K. Vinod Chandran, J.; Vipul M. Pancholi, J.
- Judgment date: November 13, 2025
Prior caselaw and citations
- (2018) 4 SCC 1 — “The State of Karnataka by its Chief Secretary vs. State of Tamil Nadu by its Chief Secretary and Others” (final decision on Cauvery water allocation; CWDT award modified by Supreme Court)
Statutes / schemes / authorities referred
- Cauvery Water Disputes Tribunal (CWDT) Award (as modified by Supreme Court in 2018)
- Cauvery Water Management Scheme (Notification dated 1 June 2018) establishing:
- Cauvery Water Management Authority (CWMA)
- Cauvery Water Regulatory Committee (CWRC)
- Central Water Commission (CWC)
- Central Electricity Authority (CEA)
- Measuring point at Biligundulu referenced for compliance monitoring
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