Supreme Court of India

THE STATE OF TAMIL NADU versus THE STATE OF KARNATAKA & ANR

2026 INSC 113

Case number: ORIGINAL SUIT No. 1/2018
Judgment date: 2026-02-02
Petitioner / appellant: THE STATE OF TAMIL NADU
Respondent: THE STATE OF KARNATAKA & ANR
Neutral citation: 2026 INSC 113
Other citation: [2026] 2 S.C.R. 285
CNR: ESCR010000392026
Bench / judges: VIKRAM NATH
Author judge: VIKRAM NATH
Bench size: 2 Judges
Disposal nature: Disposed off
Judgment year: 2026

Issue for consideration

Matter pertains to dispute as regards the sharing of the waters of the Pennaiyar River between the State of Tamil Nadu and the State of Karnataka.

Headnote excerpt

Inter-State River Water Disputes Act, 1956 – ss.3, 4 – Inter- State River Pennaiyar – of the Pennaiyar River and arising from the alleged construction of a check dam/diversion by the State of Karnataka-defendant-State on the said river, impeding the free flow of water, thereby depriving the State of Tamil Nadu-plaintiff-State of the benefits of the river waters flowing through

Full Judgement details :

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