Tamil Nadu reports 11.71 thousand million cubic feet shortfall; demands Karnataka comply with directives
GS3Economy · S&T · Environment · Security· Cropping patterns & irrigation· Prelims + Mains·
Inter-state water governance and federalism: a GS3 case study on water sharing and statutory bodies.
Why in news
Tamil Nadu farmer associations expressed shock over Supreme Court observations on the Cauvery water-sharing dispute, reporting a 11.71 thousand million cubic feet shortfall at Billigundulu.
Background
On October 15, 2026, Tamil Nadu reported a shortfall of 11.71 thousand million cubic feet of water at Billigundulu as of October 6. The state demanded that Karnataka comply with directives issued by the Cauvery Water Management Authority (CWMA) and the Cauvery Water Regulation Commission (CWRC).
Facts for Prelims
- PlaceBilligundulu: A key point in the Cauvery water-sharing dispute between Tamil Nadu and Karnataka
- FactTamil Nadu reported a 11.71 thousand million cubic feet water shortfall as of October 6, 2026
Prelims practice question
Which of the following is a key point in the Cauvery water-sharing dispute between Tamil Nadu and Karnataka?
- (a)Mettur
- (b)Hogenakkal
- (c)Tungabhadra
- (d)Billigundulu
Show answer
Answer: (d) Billigundulu — The note identifies Billigundulu as a key point in the Cauvery water-sharing dispute.
For Mains
Q. Discuss the challenges in implementing inter-state river water sharing agreements in India and the role of statutory bodies in resolving these disputes.
Dimensions to cover in your answer
- Institutional friction: Conflict between state-level agricultural demands and CWMA/CWRC regulatory directives
- Federal-State tension: Jurisdictional challenges in enforcing water-sharing quotas during periods of acute water scarcity
Keywords: Inter-state water disputes · Federalism · Water Governance · Agricultural sustainability · Statutory bodies
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