Arunachal Cabinet Sets Up Empowered Committee to Push Siang Upper Multipurpose Project Survey Past Local Resistance

The news

Guwahati. Amid protests, the Arunachal Pradesh Cabinet on Wednesday adopted a resolution approving the constitution of an empowered high-level committee “to guide and coordinate” the pre-feasibility report survey and associated activities for the proposed Siang Upper Multipurpose Project (SUMP), The Hindu reports. A pre-feasibility report is the first technical study of whether a site’s rock and river flows can support a project, and at roughly what cost, prepared before a detailed project report or any environmental clearance; for a dam, the survey behind it is fieldwork in the villages that fear submergence. A multipurpose project serves more than one end, here power, water storage and flood moderation. Villagers along the Siang river belt are resisting the pre-feasibility report for the project, which would generate an estimated 11,000 megawatts (MW) or more of hydroelectricity. Two of its three designated sites are in Siang district and one is in Upper Siang district. The Cabinet noted that the Union government had declared SUMP a national project in 2008, underlining its strategic significance, and said the project could strengthen water and energy security, help mitigate floods in the Siang-Brahmaputra basin, generate employment and support the long-term socio-economic development of the region. It underlined concerns raised by some sections of people in Siang and Upper Siang districts “regarding misinformation and disinformation” being spread by certain vested interests, and resolved that conducting the survey peacefully depended on sustained, meaningful engagement with residents of the two districts. “The voices, welfare, and aspirations of the likely project affected families and local communities have always been, and will always remain, central to the process,” the Cabinet said. Meanwhile, local authorities organised a series of school exhibitions on SUMP involving 640 students from four schools in Siang district, which an official statement described as “a targeted educational outreach initiative to foster awareness about river management and the SUMP among students.” The report does not name the committee’s members, its powers or any timeline. The Siang is the name the Yarlung Tsangpo takes when it enters India from Tibet, and it becomes the Brahmaputra in Assam, which is why the project is argued in terms of strategy and flood control as much as electricity. The syllabus link is GS3 on infrastructure (energy), environmental impact assessment and disaster management, and GS2 on the protection of vulnerable sections, here the Adi and other tribal communities of the Siang valley.

Static syllabus linkage

1. The Siang is the Yarlung Tsangpo in India, and becomes the Brahmaputra only after the Dibang and Lohit join it. The Yarlung Tsangpo rises in south-western Tibet near the Mansarovar region, flows east across the plateau, and turns sharply around the Namcha Barwa massif, the Great Bend, before entering Arunachal Pradesh as the Siang, also called the Dihang. Joined by the Dibang and the Lohit near Sadiya in Assam, it becomes the Brahmaputra, and in Bangladesh the Jamuna. India and China have no water-sharing treaty; they use an Expert Level Mechanism set up in 2006 and memoranda under which China supplies flood-season hydrological data. In December 2024 China approved a large hydropower project on the lower reaches of the Yarlung Tsangpo, where construction formally began in July 2025; India has said it will monitor the project.
2. A storage reservoir can hold a flood cushion; a run-of-river project cannot. A run-of-river project passes the river’s flow through turbines with little pondage, so it cannot hold back a flood or store water for the lean season. A storage project impounds a large reservoir behind a high dam for regulated releases, irrigation and flood moderation, at the cost of far larger submergence. The flood cushion is reservoir space kept empty during the monsoon to absorb a flood peak, and so unavailable for generating power. In March 2019 the Union Cabinet declared hydro projects above 25 MW to be renewable energy, with a hydropower purchase obligation. Under the scheme of National Projects approved in 2008, the Centre funds 90% of the cost of the irrigation and drinking-water components of selected projects.
3. A survey is not a clearance: the EIA Notification, 2006 and the Dam Safety Act, 2021 are the later gates. Under the Environment Impact Assessment Notification, 2006, issued under the Environment (Protection) Act, 1986, hydroelectric projects of 50 MW or more are Category A, appraised by an Expert Appraisal Committee of the Union Environment Ministry, and those of 25 MW to 50 MW are Category B, appraised at the State level. The stages are screening (for Category B only), scoping, public consultation and appraisal, and the public hearing is conducted by the State Pollution Control Board at or near the site. A pre-feasibility survey comes before all of this, before any statutory forum for objections exists. After construction, the Dam Safety Act, 2021 governs specified dams through a National Committee on Dam Safety, a National Dam Safety Authority and State-level bodies.
4. On tribal forest land, consent is a legal requirement, and among the Adi it is also a customary one. The Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006 recognises individual and community forest rights, and its Section 4(5) bars eviction until the recognition and verification of rights is complete. A 2009 Environment Ministry order requires, before forest land is diverted under the Forest (Conservation) Act, 1980 (renamed the Van (Sanrakshan Evam Samvardhan) Adhiniyam in 2023), certification that rights are settled and that the gram sabha has consented. In the Niyamgiri case, Orissa Mining Corporation v. Ministry of Environment and Forests (2013), the Supreme Court held that the gram sabha must decide whether a project affects the community’s religious and cultural rights. The Adi, one of the largest tribes of Arunachal Pradesh, live along the Siang valley and take collective decisions through traditional village councils called kebang.

Why UPSC loves this

1. Prelims maps the Brahmaputra system, and China’s upstream projects bring it into GS2. Prelims routinely tests North-Eastern river geography: which rivers flow through Arunachal Pradesh, which tributaries join the Brahmaputra and where, and the names a river takes across borders. The Siang–Brahmaputra–Jamuna sequence and the confluence near Sadiya are standard material. China’s lower-reaches project moves the same geography into GS2, on India–China relations.
2. GS3 places infrastructure and environmental impact assessment side by side. The GS3 syllabus lists energy infrastructure and environmental impact assessment within a few lines of each other, and large Himalayan dams sit where they meet. An answer is expected to weigh energy and water needs against seismic, ecological and social risks, and to know the sequence from pre-feasibility to EIA to dam safety.
3. GS2 and the ethics paper test consent and the rights of project-affected people. The Forest Rights Act, the gram sabha and development-induced displacement recur in GS2 under the welfare of vulnerable sections. The ethics paper frames the same conflict as public interest against community rights, and in the Siang case both sides claim to speak for the public interest.

Analysis

1. Calling resistance “misinformation” turns a consent problem into a communications problem. The Cabinet blames misinformation by vested interests and answers with a coordinating committee and school exhibitions. But the villagers’ fear is not a misreading of hydrology; it is an accurate reading that a storage project of this size needs a large reservoir and that the survey is where their land first gets marked. According to a Down To Earth report of January 2025, the survey involves drilling to test rock strength and earmarking villages for relocation, and at least 27 villages in the two districts would be directly affected. The counter-view deserves weight: without a survey no one, villagers included, can judge the project. The way through is a survey conditional on sharing its findings with each village council before any further step.
2. The strategic argument is real, and it is also the argument for the largest possible dam. The Cabinet speaks of water and energy security, and the unstated context is China’s lower-reaches project. A large reservoir on the Siang could absorb a sudden upstream release or cover a lean-season shortfall, which a run-of-river plant cannot. But that logic pushes the design toward maximum storage and so maximum submergence: the strategic benefit and the local cost rise together. It also puts a very large reservoir in one of the world’s most seismically active regions, where the 1950 Assam–Tibet earthquake of magnitude 8.6 set off landslides that blocked rivers. The counter-view is that without storage India has no hydrological answer to upstream construction; the honest position is that the dam’s size should be a disclosed trade-off, not an assumption.
3. A flood cushion and a power station want opposite things from the same reservoir. For power, a reservoir should be as full as possible; for flood control, part of it must stay empty through the monsoon. Only a published operating rule — how much cushion, held when, and who decides during a flood — resolves this. Assam’s floods also come from rain over the valley itself and from tributaries that join below the Siang, so one dam upstream can moderate only part of a flood peak. The Cabinet’s flood-mitigation claim is therefore plausible but conditional, and the project reports must quantify it. A small cushion means a small flood benefit; a large one means lower power revenue, and the project’s economics must say which.
4. Eighteen years as a national project and still at pre-feasibility is a verdict on top-down planning. SUMP has been a national project since 2008, yet in 2026 its first-stage survey needs a Cabinet resolution to proceed. Designation from New Delhi gave the project status, not legitimacy in the valley. The empowered committee repeats the approach at the State level: it improves coordination among departments, and the report says nothing about whether affected villages will have a seat on it. The counter-view is that large infrastructure needs an empowered authority to cut through delay, and consultation cannot mean a permanent veto by a few. But the 2,000 MW Lower Subansiri project, whose construction was halted for about eight years from 2011 by downstream protests in Assam, suggests that consent secured early is faster than force applied late.
5. Persuading schoolchildren signals where the dialogue with adults stands. Exhibitions for 640 students are legitimate outreach, since the young will live longest with the project, but turning to classrooms while adults along the river resist suggests the adult dialogue has stalled. The Adi already have an institution for collective decisions in the kebang, and credible engagement would take the pre-feasibility questions there, with independent technical advisers the villagers trust. According to a Down To Earth report of May 2025, the State earlier offered a development package of ₹5 crore over three years, through an agreement signed with two residents of one village, in exchange for consent to the survey. Packages negotiated village by village can divide a community rather than persuade it.

Administrator's brainstorm