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Cauvery Dispute: SC 2018 & CWDT 2007 Awards; Mekedatu Dam (48 TMC) & TN's Objection

Target:UPSC GS-IIMPSCTeachingSSC GAPrelims HighMains HighStatic GK Link
29 Jul 2026
~2 min
Source: Indian Express
Key Data:CWDT award: 419 TMC (TN), 270 TMC (Karnataka)SC 2018: TN 404.25 TMC + 10 TMC groundwater; Karnataka 284.75 TMCMekedatu: 48 TMC capacity, Rs 6,000 croreNormal release: 192 TMC (June-May)Distress: TN received 3.5 TMC vs expected 32 TMC (June 1-July 23)CWRC directive: release 4 TMC at 3,500 cusecs/day for 15 days
Bodies:Supreme CourtMinistry of Jal ShaktiCauvery Water Disputes TribunalCauvery Water Regulation Committee
Practice MCQs from today's news ▸
What This Article Covers

1.Tamil Nadu Chief Minister urged PM to block statutory/administrative approvals for Karnataka's Mekedatu project, invoking Clause XI of CWDT award which prevents upper riparian states from affecting scheduled water deliveries.

2.Jal Shakti Ministry's Parliament reply (July 27) clarified that the Supreme Court's 2018 judgment does not expressly require Karnataka to seek consent from lower riparian states for constructing structures across the Cauvery.

3.CWRC directed Karnataka to release 4 TMC of water to Tamil Nadu at 3,500 cusecs/day for 15 days due to deficient southwest monsoon (June 1-July 23: TN received only 3.5 TMC against expected 32 TMC).

The Big Picture
Prelims · HighMains · High

Tamil Nadu CM has sought PM Modi's intervention against Karnataka's Mekedatu dam project (48 TMC, Rs 6,000 crore), citing Clause XI of the Cauvery Water Disputes Tribunal (CWDT) 2007 award. The Jal Shakti Ministry's Parliament reply (July 27) stated the Supreme Court's 2018 judgment does not require Karnataka to obtain lower riparian consent for constructing structures across the Cauvery. Meanwhile, the Cauvery Water Regulation Committee (CWRC) directed Karnataka to release 4 TMC water to TN due to a rainfall deficit.

Exam Lens

Quick Exam Facts From News

CWDT Formation Year1990
CWDT Award DateFebruary 5, 2007
SC Judgment DateFebruary 16, 2018
Total Utilizable Water740 TMC
TN Share (SC 2018)404.25 TMC + 10 TMC groundwater
Karnataka Share (SC 2018)284.75 TMC
Kerala Share30 TMC
Puducherry Share7 TMC
Mekedatu Capacity48 TMC
Mekedatu Estimated CostRs 6,000 crore
Normal Monsoon Release to TN192 TMC (June-May)

1-Minute Revision

  • ›CWDT Formation Year: 1990
  • ›CWDT Award Date: February 5, 2007
  • ›Target this Data: 192 TMC normal monsoon release to Tamil Nadu, 284.75 TMC Karnataka's share (SC 2018), 404.25 TMC Tamil Nadu's share, 48 TMC Mekedatu dam capacity, Rs 6,000 crore cost.
  • ›Target this Nodal Body: Ministry of Jal Shakti; Cauvery Water Regulation Committee (CWRC); Cauvery Water Disputes Tribunal (CWDT).
  • ›Target this Legal Point: Clause XI of CWDT Award; Inter-State River Water Disputes Act, 1956; Article 262 of Constitution.

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which ministry is primarily responsible for water resources and replied to the Parliament query regarding the Mekedatu project?

Q2Statement-basedHard

Consider the following statements regarding the Cauvery water dispute:

1. The Cauvery Water Disputes Tribunal (CWDT) awarded 419 TMC of water to Tamil Nadu in its 2007 order.

2. The Supreme Court in its 2018 judgment increased Karnataka's share from 270 TMC to 312 TMC.

3. The Supreme Court allowed Tamil Nadu to extract 10 TMC of groundwater as compensation.

Which of the statements given above is/are correct?

Q3Data-centricMedium

What is the proposed storage capacity of the Mekedatu balancing reservoir mentioned in the article?

Q4Application/ImpactMedium

Why does Tamil Nadu oppose the construction of the Mekedatu dam by Karnataka?

All 25 MCQs ▸
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