The Budhigandaki river flash flood has once again brutally reminded us that Himalayan disasters rarely respect administrative boundaries. A landslide blocked the river near Chumchet in Gorkha district, unleashing a sudden surge that swept away three dozen houses, half a dozen bridges and infrastructure at a hydropower construction site. At least five people are reported missing, 49 were rescued, and downstream communities across several districts were warned to evacuate immediately.

This tragedy arrived barely six weeks after the catastrophic August 26 Bhotekoshi-Trishuli floods. Nepal has since recovered 1,455 bodies while 5,285 remain missing. The disaster affected 33,000 people, damaging or destroying 7,500 homes, and devastated roads, bridges and hydropower infrastructure. Reconstruction cost is estimated at $4.77 billion. These figures describe a national development setback whose consequences extend beyond Nepal’s borders.

Against this backdrop, Prime Minister Balendra Shah’s proposal at the United Nations General Assembly for a Himalayan Climate Resilience Mechanism led by Nepal, India and China appears both timely and compelling. But can this shared ecological vulnerability to floods help overcome a long-standing trust deficit between India and China?

When the Himalayas strike

The Himalayas are geologically young, tectonically active and exceptionally fragile. Their steep slopes, fractured rocks, unstable sediments and powerful rivers create a landscape susceptible to landslides, erosion and sudden flooding. Add the accelerating effects of global warming—glacier retreat, thawing permafrost, changing precipitation and the growing instability of glacial lakes—and you get a dangerous convergence of geological and climatic risks.

Human intervention compounds these vulnerabilities. Roads cut into unstable slopes, poorly planned construction, deforestation, settlements in floodplains, and infrastructure built without adequate risk assessments turn natural hazards into human catastrophes. Hydropower development is essential, but projects and access roads in fragile terrain require rigorous environmental assessment, monitoring and contingency planning. 

Climate change, therefore, is not the sole explanation; its consequences interact with geology, land use, infrastructure, and patterns of exposure. Nepal’s predicament captures the injustice at the heart of this precipice. The country contributes only 0.1 percent of global CO₂ emissions, yet remains acutely vulnerable to climate-related disasters. Its people bear disproportionate risks from a warming planet they have done little to heat.

When this region’s rivers cross borders, their waters sustain cities, farms and industries downstream; a landslide-dammed river or a glacier hazard upstream threatens settlements and infrastructure across frontiers. And when a few hours of advance warning can save lives, fragmented cross-country information, or lack of it, becomes dangerous.

Shah’s three-way bet

This is where, addressing the 81st UN General Assembly last month, Prime Minister Balendra Shah proposed a Himalayan Climate Resilience Mechanism to be led by Nepal, India and China. Its core functions would include sharing satellite data and technical expertise, monitoring dangerous glacial lakes, strengthening early-warning systems and coordinating cross-border disaster information and assistance.

But it is only a political invitation, not an agreed operational framework. Which agencies will collect, authenticate and circulate satellite data? Who will operate monitoring networks, maintain instruments and finance technical infrastructure? What will constitute authoritative warning, and how quickly would it reach vulnerable communities? Who will be accountable if warnings were delayed or inaccurate?

A functioning mechanism needs agreed protocols, common technical standards, designated national focal points, interoperable data systems, regular exercises and sustainable financing. It requires clear rules governing access to sensitive geospatial information. Satellite monitoring can reveal glacier conditions, landslide movements and flood risks, but such data also has security implications for participating states.

Both Beijing and New Delhi, therefore, have reasons to avoid endorsing an initiative whose institutional design, costs, data-sharing obligations and political implications remain undefined. Their silence, however, does not imply opposition to Himalayan resilience, but the difference between applauding a worthy objective and accepting an unnegotiated proposal. Nepal has placed an idea on the diplomatic table; turning it into policy requires bringing the intended partners to that table.

India-China trust deficit

For India, hydrological cooperation with China is not an abstract idea. China controls the upper reaches of the Yarlung Tsangpo, which becomes the Brahmaputra after entering India. The two have established an Expert-Level Mechanism on transboundary rivers and signed agreements for sharing flood-season hydrological information. But agreements on paper have not guaranteed uninterrupted data flows. 

China has not shared hydrological data on hydraulic structures since 2022. China’s hydropower projects on the Yarlung Tsangpo have added another layer of anxiety. One such project from 2025 is expected to become the world’s largest. Beijing presents it as a source of clean energy and economic development, while downstream concerns centre on transparency, ecological effects and seismic risks for a transboundary river basin.

The issue is not that every Chinese dam necessarily threatens India. Claims of imminent water diversion or deliberate flooding require evidence, not speculation. However, the strategic problem is one of asymmetry between upstream control and downstream dependence, magnified by limited transparency and a wider relationship of mistrust.

A trilateral Himalayan mechanism will require India to integrate Chinese data into regional monitoring and share its own geospatial intelligence and disaster assessments. Which datasets would be shared, at what resolution, under whose custody and with what verification safeguards? Would the mechanism monitor natural hazards alone, or could its infrastructure overlap with military-sensitive terrain? These are legitimate questions.

Start small, think trilateral

India need not choose between embracing PM Shah’s proposal wholesale or rejecting it altogether. A more credible route will be to build on existing institutions to demonstrate tangible benefits and expand cooperation incrementally.

India hosts the SAARC Disaster Management Centre (Interim Unit) based at the Gujarat Institute of Disaster Management campus in Gandhinagar. It can provide the convening capacity to evolve a trilateral understanding on mandates, funding and data safeguards. China has held observer status in SAARC since 2005, and this offers a possible diplomatic opening. India can take the initiative of starting a technical dialogue through the SAARC framework, inviting Chinese experts where institutional rules permit. 

While respecting SAARC’s remit, Nepal’s experience and priorities must be central, not peripheral. The first phase can focus on exchanging hazard information already suitable for public or humanitarian use. The second one can test interoperable early-warning systems in selected river basins. Only after regular exchanges, independent validation and successful exercises have built trust should these three countries consider a more comprehensive trilateral Himalayan mechanism.

This would let India and China shape the trilateral proposal together rather than merely react to it. It will give Nepal a pathway from a compelling UN speech to measurable institution building. Better warnings can save lives, coordinated monitoring can protect roads and hydropower projects, and reliable information can reduce the scope for suspicion during emergencies. Cooperation would not erase disputes but can create space for working together.

The Himalayas will not wait for a diplomatic thaw. Nor will floods respect the distinctions between strategic rivals, vulnerable neighbours and upstream or downstream states. The real test of PM Shah’s proposal is not whether India and China suddenly become partners, but whether they can agree on a few practical rules that can save lives despite their differences.