Examine the challenges of inter-state coordination in addressing ecological degradation that causes cross-border flood impacts, with reference to the Assam–Nagaland hill mining issue.

The 2026 Upper Assam floods — the Dikhow and allied tributaries breaching embankments across Sivasagar, Charaideo, Jorhat and Golaghat [3] — show that flood damage is often manufactured upstream, while remedies stop at the state border. Coordination fails structurally, not merely administratively.

Asymmetry between cause and consequence

• Hill-cutting, quarrying and coal mining in the Assam–Nagaland border hills raise sediment load and shrink channel capacity; the cost falls downstream while regulatory power sits upstream — an externality with no shared liability.
• ASDMA's relief and response mandate is state-bound [3], so disaster machinery can never reach the causal geography.

Constitutional and legal fragmentation

• Article 371A shields Naga customary ownership of "land and its resources", barring Parliamentary law unless the Nagaland Assembly resolves otherwise [2]; landowner-based rat-hole mining therefore escapes uniform central regulation.
• Land, minor minerals and relief are largely State subjects, and no binding instrument compels upstream catchment treatment for downstream benefit.

Institutional gap

• The Brahmaputra Board, statutory under the Brahmaputra Board Act, 1980, plans integrated flood and erosion control across all NE states [1] — but it plans; it cannot enforce land-use change in a neighbouring state.
• CWC forecasts river levels on the Brahmaputra and its tributaries [5]; no comparable inter-state mechanism monitors sediment or catchment degradation.

Contested causation and enforcement deficit

• Officials attribute the floods to torrential rain, disputing the mining link; without a joint basin sediment audit, causation remains a political argument rather than an agreed fact base.
• Redress becomes judicial instead of cooperative — the NGT has intervened against illegal forest diversion in Sivasagar adjoining the Nagaland border [4] — and the unsettled Assam–Nagaland boundary makes even joint inspection contested.

Coordination falters because ecological units and administrative boundaries do not coincide. A Brahmaputra Board-anchored joint catchment authority, shared sediment and satellite monitoring, and consent-based regulation respecting Article 371A can align upstream stewardship with downstream safety — making cooperative federalism itself an instrument of flood resilience.