Critically evaluate the role of the Cauvery Water Management Authority as a model for resolving inter-State river water disputes.

The Cauvery Water Management Authority (CWMA) and its Regulation Committee (CWRC) were set up under a Section 6A scheme of the Inter-State River Water Disputes Act, 1956, which the Supreme Court approved in 2018 [1]. They shifted the dispute from adjudication to day-to-day implementation. As a model, this is promising but incomplete.

Strengths as a model

• Binding mandate: its decisions are "final and binding" on all party States and the UT, so the award finally has an enforcer [1].
• Adaptive regulation: releases are reviewed every ten days against actual inflows. In a deficit, each party's share is cut in proportion to its allocation [1].
• Expert credibility: in 2023 the Supreme Court declined to interfere with a CWRC–CWMA order. It held that the factors weighed were not "irrelevant or extraneous" [2].
• Calibrated relief: in October 2026, Tamil Nadu sought 18.402 tmcft while Karnataka reported a 55.35% inflow deficit. The CWRC ordered 3,000 cusecs (about 3.88 tmcft) for 15 days, and the CWMA endorsed it [3].

Limitations

• No codified distress formula: the shortfall is shared only after the Authority declares distress [1]. So Tamil Nadu's 13.829 tmcft "backlog" and Karnataka's claimed excess release can both stand, because each State uses a different ledger [3].
• Fortnightly bargaining: each 15-day order reopens the fight. Both States contested the 2023 order, and Tamil Nadu called the CWMA's approval "mechanical" [2].
• Weak operational control: the States run the reservoirs under the Authority's "overall guidance" and supply the data. If a State does not cooperate, the Authority can only seek the Centre's help [1].
• Implements, not adjudicates: it works only once an award is settled. It cannot cut tribunal delays elsewhere. The 2019 Amendment Bill targeted those delays with a Disputes Resolution Committee and a time-bound tribunal [4].

Way forward

• Notify a rule-based distress-sharing formula with one cumulative ledger.
• Build the basin-wide data network and control room that the scheme envisaged [1].
• Revive the 2019 Bill [4] and set up standing authorities in other basins once their awards are settled.

The CWMA shows that a permanent, expert and binding body can turn a tribunal award into actual releases. Its weak point is the deficit year. Codified sharing, independent data and faster adjudication would make it a durable template for cooperative federalism and fair water sharing under SDG 6.