Bharat cannot afford to be strategically naïve while China builds a colossal dam on the upper reaches of the Yarlung Tsangpo in Tibet, the river that enters Arunachal Pradesh as the Siang and flows into Assam as the Brahmaputra. Beijing’s ambitious 60,000-MW hydropower project at the Great Bend is not merely an engineering spectacle. It is a development with potentially profound consequences for downstream water security, flood management, ecology and regional geopolitics. To expect Bharat to sit back, cross its fingers, and trust China’s assurances would be the height of strategic folly.
Enter the proposed Siang Upper Multipurpose Project (SUMP), an 11,200-MW project envisaged with approximately 9.2 billion cubic metres of live storage. Its significance goes far beyond electricity generation. Arunachal Pradesh Deputy Chief Minister Chowna Mein has emphasised that storage and regulation of river flows are central to its purpose. The proposed reservoir could provide Bharat with greater capacity to manage extreme inflows and regulate downstream discharge, although its actual effectiveness will depend on the final design, operating rules and technical assessments. The project remains at the pre-feasibility stage; its capabilities should not be confused with an established guarantee against every possible flood scenario.
The strategic logic, however, is unmistakable. China controls the upper reaches of a river on which millions downstream depend. A giant upstream project, combined with limited transparency and inadequate hydrological data-sharing, creates legitimate concerns for Bharat. Sudden releases, altered seasonal flows, or the disruption of established water patterns could have serious consequences. There is no publicly established proof that Beijing intends to manufacture floods or deliberately weaponise water against Bharat. But national security planning cannot wait for hostile intent to be demonstrated after the damage is done. Preparedness is not paranoia; it is responsible statecraft.
This is where the comparison with Bharat’s response to Pakistan over cross-border terrorism falls apart. Following the Pahalgam terror attack, New Delhi placed the Indus Waters Treaty in abeyance as part of its response to the security threat. The decision and its legal implications remain distinct from the challenge posed by an upstream mega-dam on the Brahmaputra system. One involves a political and legal response to terrorism; the other involves developing physical infrastructure to protect downstream interests against potential risks arising from another country’s control over a transboundary river. Equating the two without examining their context is intellectually dishonest.
Pakistan cannot expect the benefits of cooperation to remain insulated from the consequences of terrorism indefinitely. Equally, China cannot expect Bharat to accept strategic vulnerability simply because Beijing describes its own mega-project in the language of development and clean energy. If China can pursue its national interests through a project of unprecedented scale, Bharat has every right to assess its own requirements and develop proportionate safeguards. Sovereignty cannot mean strategic freedom for one country and helplessness for its neighbour.
Yet there is a critical distinction between defending Bharat and disregarding the people of Bharat. The opposition among sections of the indigenous Adi community in Arunachal Pradesh is neither an inconvenience to be bulldozed nor an anti-national sentiment to be dismissed. Ancestral lands, villages, livelihoods, cultural heritage and the fragile Himalayan ecosystem are legitimate concerns. The reported protests and fears of displacement demand serious engagement, not administrative impatience. National security loses moral authority if the people expected to defend the frontier are made to feel that their homes and heritage are expendable.
The government must therefore establish the project’s technical feasibility, seismic safety, environmental consequences, rehabilitation guarantees, and a transparent compensation framework. Meaningful consultations with affected communities must precede any final decision. If the project cannot withstand rigorous scientific scrutiny or its costs outweigh its demonstrable benefits, strategic rhetoric cannot rescue it. Conversely, opposition cannot become an automatic veto on examining a project that may be vital to the wider region’s long-term security.
Bharat must also intensify diplomatic pressure for transparent information-sharing, reliable flood warnings and enforceable safeguards governing upstream river projects. It needs independent hydrological monitoring, emergency-response systems and credible scientific assessments alongside infrastructure development.
China may call its mega-dam progress. Bharat must ensure that progress upstream does not translate into peril downstream. SUMP deserves serious consideration, not blind approval or reflexive rejection. The objective is not to threaten China with water, but to prevent Bharat from becoming vulnerable to decisions taken beyond its borders.
A nation that waits for a disaster before preparing for it is not peaceful; it is unprepared. Bharat has every right to build its defences against foreseeable risks. But the strongest water shield will be one that protects national interests without sacrificing the very people and environment it is meant to safeguard.
