China has begun construction on a major hydropower project on the Yarlung Tsangpo River in Tibet's Medog County, near the India-China border. This development, announced by President Xi Jinping, has raised alarms among environmentalists and regional analysts regarding potential impacts on downstream water security for India and Bangladesh. Concerns include altered river flow, increased disaster risks in a geologically sensitive area, disruption of ecosystems, and threats to livelihoods. Critics also point to a lack of transparency in China's project assessments and public consultation in Tibet.