India's Strategic Infrastructure: The Case for the Siang Upper Multipurpose Project

Itanagar, India Jul 13, 2026 ALN: [ Dibya Shankar Bhattacharya ]

In a recent article, ‘The strategic alignment of the Ganga treaty of renewal and protection of Siang river basin’, it was suggested that India should rely on transboundary water treaties rather than building strategic infrastructure to secure the Siang river basin. However, the argument that India should abandon the Siang Upper Multipurpose Project (SUMP) in favor of upgraded diplomatic treaties fundamentally misreads both the geopolitical realities of transboundary water management and the genuine sentiments of the indigenous communities.

Water management has become an increasingly critical issue in the context of global climate change and geopolitical tensions. The Siang river, which is a major tributary of the Brahmaputra, flows through before entering Assam and eventually merging with the Brahmaputra in Bangladesh. The significance of this river extends beyond local ecosystems; it plays a crucial role in the livelihoods of millions who depend on its waters for agriculture, fishing, and drinking. Thus, any project affecting this river must be examined not only from an environmental standpoint but also from the perspective of human security and regional stability.

While forging a unified Ganges-Brahmaputra-Meghna ecological treaty sounds like an elegant solution in academic corridors, relying solely on international diplomacy while halting crucial physical infrastructure ignores the immediate, existential threats posed by the upstream Chinese dams. The proposition that distant geopolitical agreements can substitute for on-the-ground disaster preparedness and tangible water security is a dangerous strategic miscalculation that leaves India’s Northeast vulnerable. The reality is that China has been actively constructing dams on the Yarlung Tsangpo, the upstream counterpart of the Brahmaputra, which poses a significant risk of altering the river's flow and potentially causing severe flooding downstream.

A central pillar of the opposition to SUMP relies on the assumption of universal local resistance, often citing the destruction of ancestral lands and culture. However, this narrative is heavily shaped by external observers, rather than the affected communities themselves. On 28 June, 2026, a meeting of project-affected families who support the proposed project’s pre-feasibility report (PFR) was held in Boleng, resulting in the constitution of the Siang Development People’s Forum (SDPF). The SDPF leadership rightly observed that most of the criticism has come from individuals residing outside the project-affected area who do not fully understand the realities facing the local population. This highlights the need for a nuanced understanding of local sentiments, which may not align with the broader environmental concerns raised by external stakeholders.

Far from a unilateral imposition, the project has proceeded through extensive consultative processes and sustained dialogues across villages of likely project-affected families of both districts. Consequently, Memorandums of Understanding (MoUs) for the PFR have reportedly been signed by a substantial majority of the likely project-affected villages. In a democratic society, the voices of these directly affected communities must be duly respected, and allegations that the project will destroy Adi culture and society are based on misinformation designed to create unnecessary apprehension. It is essential to recognize that local communities may view the SUMP not only as a means of economic development but also as a necessary measure for their safety and security.

Critics who frame the SUMP primarily as an ecological hazard conveniently overlook the far greater danger cascading down from the Yarlung Tsangpo. The ongoing construction of major hydropower projects by China on the upstream reaches of the river threatens to fundamentally alter the river’s flow regime. The local indigenous population recognizes that in the event of an extreme flood or an emergency release of water by Beijing, downstream communities face catastrophic risks and therefore the need for creating dam reservoirs to mitigate and protect from such flooding. For these frontline citizens, there is a significant difference between the unplanned, devastating flooding that could arise from upstream manipulation and a planned, scientifically assessed development process. This distinction is critical in understanding why many local communities support the SUMP despite the environmental concerns raised by outsiders.

Therefore, the issue is primarily one of safety, security, and the long-term welfare of the Adi people, with power generation being the other aspect of the project. The potential for hydroelectric power generation is significant, providing a much-needed boost to the energy grid in a region that often faces power shortages. However, the primary focus of the SUMP should remain on safeguarding local communities from the unpredictable and potentially catastrophic impacts of upstream damming by China. Far from the SUMP being an aggressor, it is a vital water shield necessary for the downstream communities to plan their future settlements, livelihood activities, and disaster preparedness.

Furthermore, the assertion that India can neutralize Beijing’s water weaponization by presenting a unified diplomatic front at global forums completely ignores historical precedent. Critics may need to look at the Mekong river, where six countries reside downstream of China’s extensive cascade of mega-dams. Despite decades of multilateral diplomatic pressure and the existence of frameworks, where downstream nations attempt to negotiate equitable sharing, China remains unbound by water-sharing treaties and routinely manipulates the river’s flow, devastating downstream agriculture and ecosystems. Beijing does not yield to the pressure of lower riparian states relying solely on legal theories. Expecting a different outcome for the Brahmaputra basin by merely signing an upgraded accord with Dhaka borders on negligence. This historical context underlines the necessity of developing domestic infrastructure to address the challenges posed by upstream developments.

True security cannot be achieved by relinquishing India’s right to build necessary, protective infrastructure in the fleeting hope that an international tribunal will rein in a superpower that actively rejects customary environmental law. India must prioritize the physical security and disaster preparedness of its citizens. By listening to the pragmatic voices of the local communities and securing the region with the Siang Upper Multipurpose Project, the nation can establish a robust, physical defense of its sovereignty and its citizens. The implications of the SUMP extend beyond immediate safety concerns; they encompass long-term regional stability, economic development, and the preservation of local cultures in the face of external pressures.

In conclusion, while the call for transboundary water treaties is valid in theory, the practical realities on the ground demand that India take proactive steps to secure its interests in the Siang river basin. The SUMP represents not just a project for power generation or irrigation; it embodies a strategic initiative essential for the protection of communities, the preservation of local livelihoods, and the assertion of national sovereignty in a geopolitically sensitive region. Ensuring that the voices of local communities are heard and integrated into the decision-making process is crucial for the success of the project and the well-being of the people it aims to serve.