Discuss the ecological and social concerns around large hydropower projects in the eastern Himalayas. How can the state reconcile strategic imperatives with tribal land rights?

The proposed Upper Siang project in Arunachal Pradesh, a national project for flood moderation [1], is pitched as India's buffer against China's upstream mega-dam on the Yarlung Tsangpo. Whether it is legitimate, however, will depend on ecological prudence and the consent of the Adi communities whose land it would submerge.

Ecological concerns

• Seismic fragility: the entire North-East lies in Seismic Zone V, with a magnitude-6+ earthquake roughly every year [2].
• Landslides and silt: NDMA calls Arunachal's landslides a chronic problem [3]. Heavy silt shortens reservoir life and starves Assam's floodplains.
• Cascading risk: dams stacked on one river across a border can turn a single failure or sudden release into a chain of downstream floods.
• Biodiversity loss: riverine forests are submerged and fish migration is blocked in a biodiversity hotspot.

Social concerns

• Customary land: most land is community-held. Submergence threatens homesteads, jhum fields and sacred sites.
• Securitised process: Central Armed Forces were deployed during the Siang protests. The NHRC took suo motu cognizance and sought reports from the Chief Secretary and DGP [4].
• Trust deficit: the project was still at the pre-feasibility stage in 2016 [1]. Coercion at the survey stage hardens opposition before any decision is made.
• Downstream livelihoods: changed river flows hit fishers and farmers in Assam and Bangladesh.

Reconciling strategy with rights

• Consent first: respect the Gram Sabha primacy upheld in Niyamgiri (2013) [5]. Withdraw forces and review cases against protesters.
• Due process: carry out a Social Impact Assessment under the LARR Act, 2013 [6]. Add a basin-wide cumulative EIA with genuine public hearings under the EIA Notification, 2006 [7].
• Benefit-sharing: offer equity, free power and local jobs. Keep these separate from consent so development is not seen as a bribe.
• Design: consider lower-height or phased options that reduce submergence but keep a flood cushion.
• Hydro-diplomacy: widen the 2006 Expert-Level Mechanism, under which China shares Brahmaputra and Sutlej flood data [8], to cover year-round flows. Add more Indian river gauges near the border.

Strategic security and tribal rights support each other: a buffer dam protects India only once it is built, and it can be built only with local consent. A science-led, consultative model that honours Article 46's protection of Scheduled Tribes can secure both the border and SDG 7.