For Prelims: Inter-State river water dispute, Forest land diversion, River basin
For Mains: Geography: River basins and inter-State water disputes; Environment: Forest conservation and Western Ghats ecology
Source:The Hindu
5 facts for one-day exams
SSC, railway, police and teaching exams ask direct questions like these.
- Mahadayi is also known as Mhadei.
- Karnataka Neeravari Nigam Limited applied for diversion of 71 acres of forest land.
- The planned first phase targets drinking-water supply to Hubballi-Dharwad, Gadag and some villages.
- Central officials issued a notice to Karnataka in July 2026.
- Goa has raised concerns about the Mhadei Wildlife Sanctuary.
The news
The Union Ministry of Environment, Forest and Climate Change has removed Karnataka’s Mahadayi basin diversion works from the online queue of pending projects, a move that Goa’s Water Resources Development Minister Subhash Shirodkar described as a withdrawal of forest clearance. The decision, reported on 13 November 2026, affects a proposal by the Karnataka Neeravari Nigam Limited (KNNL) to divert 71 acres of forest land in Khanapur, Belagavi district, for pipelines, a pumphouse and powerlines. The first phase of the diversion is intended to supply drinking water to Hubballi-Dharwad, Gadag and some villages.
Central ministry officials said the removal followed Karnataka’s delay in submitting responses to queries raised during two field visits. A notice was issued to the Congress government in the state in July 2026, but an appropriate response was not received on time. Officials also indicated that a final decision on the proposal can be taken only after the Supreme Court rules on the inter-State river water dispute between Karnataka and Goa. Separately, the Kalasa Nala diversion proposal, another project in the basin, is yet to be submitted to the Centre. Karnataka forest officials have noted that the Banduri Nala involves lesser forest land submergence than the Kalasa Nala project. Goa has opposed the diversion projects, arguing they could threaten the Mhadei Wildlife Sanctuary and Western Ghats ecology.
Mahadayi river water dispute: why in the news?
The Union Ministry removed Karnataka’s Mahadayi basin diversion works from the online queue of pending projects, effectively stalling the forest clearance process. The move highlights the ongoing inter-State river water dispute and the ecological concerns raised by Goa.
What is the Mahadayi Water Disputes Tribunal?
The inter-State river water dispute over the Mahadayi (Mhadei) was referred to the Mahadayi Water Disputes Tribunal by the central government in 2010 under Section 4 of the Inter-State River Water Disputes Act, 1956. The Tribunal delivered its final award in 2018, allocating water shares among the basin states of Goa, Karnataka and Maharashtra. Karnataka was permitted to divert a limited quantum of water for drinking purposes, but the award was challenged by all three states in the Supreme Court, where the matter remains pending. The Mhadei Wildlife Sanctuary in Goa was notified in 1999 and forms a part of the Western Ghats, selected sites of which were inscribed on the UNESCO World Heritage List in 2012. The Forest (Conservation) Act, 1980 requires prior approval of the central government for the diversion of forest land for non-forest purposes, which is the clearance process Karnataka had initiated.
What is the Mahadayi river dispute about?
The Mahadayi, also known as Mhadei, originates in Karnataka and flows through Goa before joining the Arabian Sea. Karnataka and Goa have been in a long-standing dispute over the sharing of its waters. Karnataka plans to divert water from the Mahadayi basin to meet drinking water needs in Hubballi-Dharwad, Gadag and surrounding villages, while Goa opposes the diversion, citing potential threats to the Mhadei Wildlife Sanctuary and the Western Ghats ecosystem. The matter is currently before the Supreme Court.
What has the removal from the queue achieved and missed?
The removal from the online queue means the proposal is no longer under active consideration by the ministry, effectively stalling the forest clearance process. Goa’s minister welcomed the move, saying it strengthens the state’s case in the Supreme Court. However, the removal does not constitute a final judicial decision; central officials have stated that a final decision on the proposal can be taken only after the Supreme Court rules on the inter-State dispute. The planned drinking-water objective for Hubballi-Dharwad and Gadag remains unaddressed, and farmers who received acquisition notices had opposed the proposal at a meeting in Khanapur in April 2025.
Banduri Nala and Kalasa Nala
| Project | Forest-land submergence | Proposal status |
|---|---|---|
| Banduri Nala | Less than Kalasa Nala | Part of planned basin works |
| Kalasa Nala | More than Banduri Nala | Yet to be submitted to Centre |
Mahadayi river water dispute: facts and terms for exams
- Inter-State river water dispute:
- A disagreement between states concerning the use, distribution or control of waters of an inter-State river.
- Forest land diversion:
- The use of forest land for a non-forest purpose, subject to applicable approval requirements.
- River basin:
- The area of land drained by a river and its tributaries.
Mahadayi river water dispute: why it matters for exams
Syllabus: Geography: River basins and inter-State water disputes; Environment: Forest conservation and Western Ghats ecology
Common mistake: Examiners may swap removal from the pending-projects queue with a final Supreme Court ruling. The works were removed from the queue; officials indicated that a final decision can follow the Court’s ruling.
Mains question on Mahadayi river water dispute
Examine the inter-State river water dispute between Karnataka and Goa over the Mahadayi river, and discuss the ecological and developmental concerns involved.
Stuck? Get it in one tap
Karnataka plans to divert river water to provide drinking water to cities and villages. The proposal requires clearance to use forest land for construction. The works have been removed from the pending-projects queue, while the river water dispute is before the Supreme Court.
- Geography: River basins and inter-State water disputes
- Environment: Forest conservation and Western Ghats ecology
Related concepts: Inter-State river water dispute, Forest land diversion, River basin
Practice questions
Pick an answer, then read the explanation.
- Q1Easy
Which organisation applied for forest clearance for the Mahadayi basin diversion works in Karnataka?
Explanation: Karnataka Neeravari Nigam Limited applied for clearance to divert forest land. The Supreme Court is considering the inter-State dispute; Goa’s ministry opposes the projects, while Karnataka forest officials compared submergence areas.
- Q2Hard
Consider the following statements about the Mahadayi basin diversion proposals:
- 1.The planned first phase aims to provide drinking water to Hubballi-Dharwad, Gadag and some villages.
- 2.The separate Kalasa Nala diversion proposal has already been submitted to the Centre.
- 3.Karnataka forest officials say Banduri Nala involves less forest-land submergence than Kalasa Nala.
Which of the statements given above is/are correct?
Explanation: Statements 1 and 3 correctly describe the planned beneficiaries and the forest officials’ comparison. Statement 2 is incorrect because the separate Kalasa Nala proposal is yet to be submitted to the Centre.
- Q3Medium
How much forest land did Karnataka Neeravari Nigam Limited seek to divert for the Mahadayi basin works?
Explanation: The application sought diversion of 71 acres of forest land for pipelines, a pumphouse and powerlines. The figures of 61, 81 and 91 acres do not correspond to that application.
- Q4Medium
What is the principal stated purpose of the planned first phase of the Mahadayi basin diversion works?
Explanation: The planned first phase is intended to supply drinking water to Hubballi-Dharwad, Gadag and some villages. Wildlife protection is a concern raised by Goa, the dispute is before the Supreme Court, and the submergence comparison concerns Banduri and Kalasa.
Frequently asked questions
1. How much forest land is involved in Karnataka’s Mahadayi diversion application?
The application seeks diversion of 71 acres of forest land for pipelines, a pumphouse and powerlines.
2. Which places are intended to receive drinking water from the Mahadayi diversion works?
The planned first phase is intended to serve Hubballi-Dharwad, Gadag and some villages.
3. Why does Goa oppose Mahadayi basin diversion projects?
Goa argues that the projects could threaten the Mhadei Wildlife Sanctuary and Western Ghats ecology.
4. What is the status of the Kalasa Nala diversion proposal?
The separate Kalasa Nala proposal is yet to be submitted to the Centre.
All sources
Original13 November 2026 · Read story
