R ARIVANANTHAM
CHENNAI, JUNE 16
The battle over Karnataka’s proposed Mekedatu balancing reservoir is entering a decisive political phase, with Tamil Nadu’s farmers preparing to carry their agitation to the national capital in what could become one of the largest coordinated protests over the Cauvery dispute in recent years.
- June 23 siege of Central Water Resources Department signals escalation in decades-old Cauvery battle
- Farmers’ bodies warn Mekedatu reservoir could threaten irrigation, drinking water security and the livelihood of lakhs across the Cauvery Delta
- Political parties across Tamil Nadu—from the ruling establishment to opposition and regional outfits—have sharpened demands for an uncompromising legal and constitutional response
- With hydrocarbon exploration off Parangipettai also under attack, farmers have widened their campaign into a larger movement on water security, environmental protection and agrarian survival
The Tamil Nadu Cauvery Farmers Association has announced a massive march and proposed siege of the Central Water Resources Department headquarters in New Delhi on June 23, demanding that the Union Government reject Karnataka’s proposal and protect the downstream rights of Tamil Nadu farmers.

The decision, taken at the organisation’s state committee meeting in Tiruvarur, reflects growing anxiety across the Cauvery Delta that another upstream storage structure could alter water availability critical for irrigation and drinking purposes.
Association General Secretary P.R. Pandian said the agitation would bring together farmers from multiple districts and organisations to send an unmistakable message to New Delhi.
“The Centre should not grant approval for the Mekedatu project. Construction of a dam without Tamil Nadu’s concurrence will undermine the interests of downstream farmers and affect the state’s rightful share of Cauvery waters.”
The association has also appealed to Chief Minister C. Joseph Vijay to pursue every available legal and administrative avenue to block the project.
“The state government must act decisively to safeguard Tamil Nadu’s water rights and protect the livelihood of lakhs of farmers dependent on the Cauvery basin.”
Political Consensus Rarely Seen in Tamil Nadu
In a state often divided by fierce political rivalry, the Mekedatu issue has produced an unusual degree of consensus.
The Tamil Nadu government has reiterated that it will oppose the project through all legal mechanisms, maintaining that the proposed reservoir violates the spirit of previous judicial and tribunal decisions governing the sharing of Cauvery waters. Senior ministers have affirmed that the state will continue pursuing every constitutional remedy available.
AIADMK General Secretary Edappadi K. Palaniswami has criticised the government’s handling of the issue, urging a more aggressive approach and describing the Cauvery as the lifeline for agriculture and drinking water across large parts of Tamil Nadu.
PMK President Dr. Anbumani Ramadoss has demanded that the Union Government reject Karnataka’s Detailed Project Report, arguing that Tamil Nadu has every constitutional right to oppose a project that could adversely affect irrigation and drinking water supplies for millions.
MDMK General Secretary Vaiko has organised protests against the project, warning that Mekedatu would threaten water security and agricultural production across Tamil Nadu while urging the Centre to halt Karnataka’s plans.
Left parties, including CPI(M), CPI and CPI(ML), have demanded an all-party meeting and accused Karnataka of violating the Cauvery Tribunal award and Supreme Court directions, while insisting that Tamil Nadu adopt a firm and uncompromising stand.
Several delta-based farmers’ federations, irrigation associations and agricultural unions have consistently argued that any additional upstream storage could reduce timely releases needed for Kuruvai and Samba cultivation, thereby affecting one of India’s most fertile rice-producing regions.
More Than a Dam: A Battle Over Water Security
Karnataka maintains that the Mekedatu project is intended primarily as a balancing reservoir for drinking water supply and hydropower generation.
Tamil Nadu, however, fears that enhanced storage capacity upstream could alter regulated releases into the Cauvery system, particularly during distress years, affecting irrigation schedules and drinking water supply in several districts.
Water experts note that the dispute goes beyond engineering considerations and reflects the broader challenge of balancing upstream development with downstream rights under an already stressed river basin facing climate variability and rising demand.
Farmers Expand Protest Agenda
Beyond Mekedatu, the Tiruvarur meeting adopted another significant resolution opposing Indian Oil Corporation’s proposed hydrocarbon exploration project off the Parangipettai coast.
The association expressed concern over possible ecological consequences for coastal ecosystems, fishing communities and agricultural livelihoods, arguing that industrial expansion should not compromise fragile environmental zones.
Farmers also renewed their demand for a comprehensive crop loan waiver, expressing hope that the forthcoming Assembly session would deliver on electoral commitments relating to agricultural debt relief.
June 23 Protest Seen as Turning Point
With representatives from multiple districts expected to participate, the Delhi protest is being viewed as an attempt to elevate the Mekedatu dispute from an inter-state issue into a national debate on federalism, water rights and food security.
For Cauvery Delta farmers, the agitation is not merely about a proposed dam but about protecting an agricultural economy that sustains lakhs of families and contributes significantly to Tamil Nadu’s food production.
As Karnataka presses ahead with its ambitions and Tamil Nadu mobilises legal, political and agrarian resistance, the Mekedatu dispute appears set to remain one of southern India’s most consequential water conflicts.



