# Interstate water disputes in India

> Developing situation record from CLSTR: https://clstr.news/situations/interstate-water-disputes-in-india
> Updated: 2026-11-09T08:22:36.000Z. Sources: 6. Developments: 2.

Tensions regarding water rights and infrastructure projects have emerged between several Indian states. In Karnataka, officials have formally objected to a Maharashtra government proposal to divert 40 TMC of floodwater from the Krishna river to the Bhima river. Karnataka Minister M. B. Patil questioned the legal legitimacy of the plan, noting that the Krishna Water Disputes Tribunal-II award has not been officially notified. The Karnataka government intends to approach both the Maharashtra and Union governments to protect its water interests.

Simultaneously, a dispute has intensified between Karnataka and Tamil Nadu over the proposed Mekedatu balancing reservoir project on the Cauvery River. Karnataka Chief Minister D. K. Shivakumar defended the project, stating it complies with Supreme Court orders and is intended to provide drinking water for Bengaluru. However, Tamil Nadu leaders have accused the central government of failing to protect their interests and have alleged that the Karnataka government is misrepresenting judicial verdicts for political gain.

## Claims

- Manickam Tagore accused the BJP-led central government of betraying Tamil Nadu on the Cauvery water issue. (reported by 3 sources)
- Manickam Tagore alleged that the central government is politicizing the Cauvery dispute. (reported by 2 sources)
- Chief Minister Vijay wrote to Prime Minister Narendra Modi objecting to Union Government officials visiting the Mekedatu site. (reported by 2 sources)
- Anbumani Ramadoss accused DK Shivakumar of misrepresenting the Supreme Court verdict for political gain. (reported by 1 source)
- Vaiko stated that the 2018 Supreme Court verdict prohibits upstream states from taking actions that affect scheduled water supply to downstream states. (reported by 1 source)
- DK Shivakumar asserted that the Mekedatu project would benefit the lower riparian state. (reported by 1 source)

## Timeline

### 2026-11-09: Mekedatu dam dispute intensifies between Karnataka and Tamil Nadu

Karnataka Chief Minister DK Shivakumar defends the Mekedatu dam project, while Tamil Nadu leaders accuse him of misrepresenting court orders and the central government of failing to protect state water rights.

6 sources. https://clstr.news/cluster/tamil-nadu-leaders-condemn-karnataka-over-mekedatu-dam-claims

### 2026-11-01: Karnataka opposes Maharashtra's Krishna river water diversion plan

Karnataka Minister M. B. Patil has challenged Maharashtra's plan to divert 40 TMC of Krishna river water to the Bhima river, citing legal concerns and potential impacts on Karnataka's water rights.

3 sources. https://clstr.news/cluster/karnataka-opposes-maharashtras-krishna-river-water-diversion-plan

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Cite as: Interstate water disputes in India. CLSTR, https://clstr.news/situations/interstate-water-disputes-in-india