The Supreme Court of India, on April 2, 2026, stayed Rajasthan's decision to denotify 732 hectares of the National Chambal Sanctuary, holding that the state government acted illegally by proceeding without judicial approval. A bench of Justice Vikram Nath and Justice Sandeep Mehta raised serious concerns over rampant illegal sand mining in the sanctuary area, observing that gharials and aquatic species are on the verge of extinction.
Background
The Rajasthan government issued a notification on December 23, 2025, which was officially published on March 9, 2026, denotifying 732 hectares of the National Chambal Sanctuary. The Chambal river basin, straddling Rajasthan, Madhya Pradesh, and Uttar Pradesh, is one of the last refuges for the critically endangered gharial (Gavialis gangeticus) and also supports populations of the Ganges river dolphin, Indian skimmer, and several species of freshwater turtles.
The Supreme Court took up the matter suo motu, designating it as SMW(C) No. 2/2026. Reports of extensive illegal sand mining operations in the sanctuary area, which had allegedly been facilitated by the denotification, prompted the Court's intervention. The National Green Tribunal had been hearing a related sand mining case, which the Supreme Court subsequently transferred to itself.
Key Holdings
The Court's order established several significant principles:
Illegality of unilateral denotification: Justice Mehta observed that the state government "should have come to the Court for the denotification; they could not have done it on their own, that is illegal." The Court held that reserved lands for protected species cannot be denotified without following statutory safeguards and obtaining judicial sanction.
Stay of notification: The notification dated December 23, 2025, and published on March 9, 2026, was stayed in its entirety. The 732 hectares revert to their protected sanctuary status pending further hearing.
Extinction risk: The Bench expressed grave concern that gharials and aquatic life in the Chambal are "on the verge of extinction," characterising the denotification as a direct threat to endangered species survival.
Transfer of NGT proceedings: The Court transferred the pending illegal sand mining matter from the National Green Tribunal to itself, consolidating environmental protection jurisdiction over the Chambal region.
Preventive detention suggestion: Justice Mehta recommended that state authorities consider applying preventive detention provisions against sand mining mafia operators in the region, signalling the severity of the illegal activity.
Implications for Practitioners
This order reinforces the Supreme Court's role as the ultimate guardian of environmental protection in India, particularly for designated wildlife sanctuaries. Environmental lawyers should note the Court's strong stance that state-level denotification of sanctuary land requires judicial oversight — a principle that applies across all states with designated sanctuaries.
For practitioners advising mining companies and infrastructure developers, the order serves as a reminder that activities within or adjacent to wildlife sanctuaries carry elevated legal risk. Even where state governments appear to have granted permissions through denotification, such permissions are vulnerable to judicial challenge if proper statutory procedures under the Wildlife Protection Act were not followed.
The transfer of the NGT case to the Supreme Court concentrates all Chambal-related environmental litigation in one forum, potentially accelerating enforcement measures against illegal mining operations.
Frequently Asked Questions
What happens to activities that commenced on the denotified land between March 9 and April 2, 2026?
The stay order restores the sanctuary status of the 732 hectares, meaning any activities inconsistent with sanctuary protection — including mining, construction, and encroachment — that commenced after the March 9 denotification would now be in violation of the Wildlife Protection Act, 1972. Parties who commenced activities in reliance on the denotification should seek legal counsel on their exposure.
When will the Supreme Court hear the matter next?
The next hearing is scheduled for May 11, 2026. In the interim, the stay on the denotification notification remains in force, and the consolidated proceedings covering both the denotification challenge and the NGT-transferred illegal sand mining case will be heard together.