CWMA upholds CWRC’s order to Karnataka to release water to Tamil Nadu

Why in the News

The Cauvery Water Management Authority (CWMA) on 30 July upheld an order of the Cauvery Water Regulation Committee (CWRC) directing Karnataka to release 3,500 cusecs of water a day to Tamil Nadu for 15 days despite Karnataka’s own appeal citing drought. The ruling exposes that Karnataka and Tamil Nadu still have no agreed formula for sharing shortfalls in the Cauvery basin, years after the Supreme Court’s final verdict on the dispute.

How does the Cauvery water sharing mechanism work?

1. Two tier structure: The CWRC functions within the CWMA, which implements the 2007 award of the Cauvery Water Disputes Tribunal as modified by the Supreme Court in 2018.
2. Composition: The CWRC is headed by the Member (Water Resources) of the CWMA and includes Chief Engineers of all basin states along with representatives of the India Meteorological Department (IMD), Central Water Commission and the Union Ministry of Agriculture and Farmers Welfare.
3. Monitoring role: It tracks daily water levels, inflows and storage at eight reservoirs, four in Karnataka, three in Tamil Nadu and one in Kerala. It also issues seasonal water release directions for each basin state.
4. Appeal route: A state aggrieved by a CWRC order can appeal to the CWMA. The CWMA, as the apex body monitoring compliance with the Supreme Court’s verdict, can uphold, modify or set aside the CWRC’s order.
5. Unit of measure: Releases are set in cusecs, a rate of flow measured in cubic feet per second, while cumulative volume is tracked in thousand million cubic feet, referred to as tmc ft.

Why did the CWRC order the release now?

1. Deficient inflows: Karnataka’s four reservoirs recorded a combined inflow shortfall of about 60% against the 30 year average, and the deficit at the Biligundulu gauge, where Karnataka’s flow to Tamil Nadu is measured, was 90%.
2. Storage position: As on 30 July, Karnataka’s four reservoirs held 65.34 tmc ft against a total capacity of 114.57 tmc ft.
3. Forecast: The IMD gave no optimistic outlook for the following weeks, which shaped the CWRC’s view that Karnataka could still spare water.
4. Buffer assessment: The CWMA noted Karnataka’s reservoirs stood to gain a minimum of 15 tmc ft in the next 15 days and that releasing 4.5 tmc ft would not affect Karnataka’s drinking water needs.

Why do both states reject the outcome as unfair?

1. Karnataka’s distress claim: Karnataka cited a super El Nino effect, said it had not begun irrigation releases this year, and argued Tamil Nadu would separately gain from the northeast monsoon later in the season.
2. Karnataka’s carryover argument: Karnataka contended Tamil Nadu already held substantial carryover storage from earlier releases, reducing its immediate need.
3. Tamil Nadu’s shortfall claim: Tamil Nadu sought 9.45 tmc ft over 15 days at 7,000 cusecs a day under the distress formula, arguing the ordered 3,500 cusecs was insufficient given a 90% deficit at Biligundulu.
4. Tamil Nadu’s cultivation needs: Tamil Nadu’s ongoing kuruvai season needs at least 30 tmc ft against a Mettur storage of about 36 tmc ft, of which 10 tmc ft is reserved for drinking water. The following samba thaladi season needs a minimum of 180 tmc ft.
5. Political fallout: Karnataka’s Chief Minister called an all party meeting in Bengaluru on 2 August to consider legal options, and farmer protests have already begun in the Cauvery basin against the release order.

What are the challenges to the Cauvery dispute resolution mechanism?

1. No distress sharing formula: Both the CWRC chief and Tamil Nadu’s position point to the absence of an agreed formula for splitting shortfalls in a deficient year, forcing an ad hoc order each time rainfall fails.
2. Recurring litigation: Karnataka has approached the CWMA and is weighing further legal options, repeating a cycle of appeals seen in nearly every distress year since the tribunal’s award.
3. Compliance risk: The CWMA can direct a release, but implementation still depends on Karnataka’s cooperation, a dependence that has previously produced Supreme Court contempt proceedings against Karnataka.
4. Climate variability: A pattern of super El Nino effects and deficient monsoons increases the frequency of distress years, straining a formula built around long term averages rather than year on year swings.
5. Political cost: A release ordered during an acknowledged drought risks becoming a flashpoint for farmer unrest and inter state friction, regardless of the technical merits of the CWRC’s assessment.

Conclusion

The CWMA’s ruling shows the institutional mechanism functioning as designed, yet satisfying neither riparian state. Karnataka calls the release unfair given its own distress, and Tamil Nadu calls the quantum inadequate for its cultivation needs. What remains unresolved is not whether the tribunal award should be enforced, but whether Karnataka and Tamil Nadu will ever agree on a distress sharing formula that removes the need for fresh litigation every deficient season. The CWRC is scheduled to meet again on 11 August to review compliance.

Back2Basics:

Cauvery Water Management Authority (CWMA)

1. Established in June 2018 by the Union Jal Shakti Ministry to implement the final award of the Cauvery Water Disputes Tribunal (2007) as modified by the Supreme Court’s verdict of the same year.
2. Constituted under Section 6A of the Inter State River Water Disputes Act, 1956, following the Supreme Court’s directions.
3. Composition includes a Chairman, a Secretary and Members, including a full time Member (Water Resources) who also heads the Cauvery Water Regulation Committee.
4. Jurisdiction covers water release, storage and supply regulation across the Cauvery basin states of Karnataka, Tamil Nadu, Kerala and Puducherry.
5. Functions as the apex body for compliance with the Supreme Court’s verdict, with the CWRC as its technical monitoring arm.

PYQ Relevance

[UPSC 2013] Constitutional mechanisms to resolve the inter-state water disputes have failed to address and solve the problems. Is the failure due to structural or process inadequacy or both? Discuss.

Linkage: It examines the effectiveness of constitutional and institutional mechanisms for resolving inter-state river water disputes. The article highlights recurring Cauvery disputes, the absence of a distress-sharing formula, and continuing litigation despite the CWMA framework.