Topic 9 of 18
GS Paper 3 Environmental Regulation & Protected-Area Governance Illegal Riverbed Mining in the Deihori River, Karbi Anglong - Seven Years After the Supreme Court Ban

The Ban Held in Court. It Never Reached the Riverbed.

Source The Hindu

A resident of Diphu wrote to the National Green Tribunal because no official noticed the excavators first. Seven years after the Supreme Court banned mining along Kaziranga's southern boundary, it took a private citizen's petition, not a district inspection, to flag that the ban was being ignored in the Deihori river.

Summary

Mohajon Kro, a resident of Karbi Anglong, has petitioned the NGT and the Environment Ministry alleging large-scale mechanised sand mining in the Deihori river, within Kaziranga National Park's proposed Eco-Sensitive Zone. The petition names Songja Terang as the holder of a quarry lease issued by the Divisional Forest Officer - meaning the mining is operating under a formal permit, seven years after the Supreme Court's 2019 blanket ban on mining along Kaziranga's southern boundary.

WHY IN NEWS FOR UPSC & STATE PCS

The petition, filed on August 5, 2026, alleges that excavators, earthmovers and dumpers are actively extracting sand from the Deihori riverbed and that local authorities have failed to enforce existing regulatory safeguards or monitor the extraction activity.

Standard News

The Ban Was Never Broken

  • It Was Never Enforced The Supreme Court's 2019 order was unambiguous: a complete ban on mining along Kaziranga's southern boundary and the catchment areas of rivers flowing out of the Karbi Anglong hills. That's the commitment, stated precisely, with a clear geographic scope and no ambiguity about what activity it prohibits. Seven years later, excavators and dumpers are operating in the Deihori riverbed - inside that exact banned zone - under what the petitioner describes as a formal quarry lease issued by the local Divisional Forest Officer. That detail is the one worth sitting with: this is not a case of miners sneaking past enforcement in the dark. A named individual, Songja Terang, reportedly holds a lease for this exact stretch of river, issued through an official government channel. That means the failure here isn't ambiguous law or absent regulation - India's Sustainable Sand Mining Management Guidelines, 2016 explicitly restrict heavy machinery in riverbeds and the Supreme Court's ban predates this lease by years. The gap is specifically in district-level enforcement: whoever processed and approved this lease either wasn't checking it against the 2019 order or the order simply isn't being cross-referenced against local permitting decisions at all. This distinguishes the Deihori case from the more familiar story of illegal mining evading detection. Evasion implies the system is working but being outrun. What's described here is closer to institutional non-communication - a Supreme Court directive that exists on paper at the national level but apparently never got built into the district forest office's actual permitting checklist. The petitioner explicitly frames it this way, saying local authorities "failed to enforce the regulatory safeguards"
  • not that miners evaded them, but that the safeguards weren't being applied to a mining lease sitting inside a protected boundary. To be fair to the system, something is working here too: the National Green Tribunal exists precisely as the mechanism through which a private citizen - not a government inspector - can force this gap into the open. The petition itself is a functioning piece of the accountability architecture, even if it had to be triggered by an outside resident rather than routine district monitoring. What this leaves unresolved is the more consequential question for Kaziranga's ecology: the Karbi Anglong hills aren't a peripheral detail - they're where the park's rhinos, tigers and other wildlife physically retreat during monsoon flooding. A destabilised riverbed and increased turbidity in this specific catchment area isn't a generic environmental cost; it's degradation of the flood-refuge corridor the entire park's wildlife depends on during its most vulnerable season. For an aspirant, the lesson here isn't "environmental laws are weak"
  • the 2019 ban and the 2016 mining guidelines are both specific, binding instruments. The lesson is that a judicial ban's real strength depends entirely on whether it gets translated into the routine administrative decisions - like who gets a quarry lease - made at the district level, months and years after the order was issued and largely forgotten by national headlines.

Quick Facts

Key numbers & takeaways — revise these first

  • The Supreme Court banned mining along Kaziranga's southern boundary and the catchment areas of rivers originating in the Karbi Anglong hills in April 2019.

  • The Karbi Anglong hills serve as a refuge for rhinos, tigers and other wildlife during monsoon floods when the park itself is submerged.

  • The petition names Songja Terang as the permit holder for the Deihori river sand and gravel quarry lease, issued by the Divisional Forest Officer, Karbi Anglong East Division.

  • India's Sustainable Sand Mining Management Guidelines, 2016 restrict the use of heavy machinery in riverbeds.

  • Karbi Anglong district authorities have yet to verify the allegations.

Beyond The Headlines
GS Paper 3 Illegal Riverbed Mining in the Deihori River, Karbi Anglong - Seven Years After the Supreme Court Ban

Connect the dots for your UPSC preparation.

Standard news covers the event. Log in to read our comprehensive analysis and uncover the hidden constitutional, structural, and ethical dimensions of this topic:

1

The full breakdown of exactly how a formal quarry lease could be issued inside a Supreme-Court-banned mining zone.

2

The complete ecological case for why the Karbi Anglong hills matter specifically as Kaziranga's monsoon flood-refuge corridor.

3

The structural diagnosis distinguishing this coordination failure from ordinary illegal-mining evasion.

4

The way-forward analysis on what a judicial-order database could do to prevent this exact gap recurring elsewhere.

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