Overview
- Local opposition led to clashes near Uggeng during Pre-Feasibility Report (PFR) survey work, with police reporting more than eight security personnel injured and five people arrested.
- Journalist groups Arunachal Press Club and Arunachal Pradesh Union of Working Journalists say SUMP-related videos and accounts have been made inaccessible in India and have demanded immediate restoration and a legal explanation.
- The state government and leaders including Deputy Chief Minister Chowna Mein repeat that the PFR is an initial technical study, that no construction decision has been taken, and that further studies, consultations and statutory clearances are required.
- Officials argue the proposed Siang Upper Multipurpose Project would prioritise water storage and flow regulation over power generation, citing a larger live storage figure than nearby projects to explain how it could manage sudden upstream releases.
- Security forces remain deployed while protesters press for a halt to surveys and withdrawal of troops, and the situation could shape next steps on community consultations, legal challenges over reported digital restrictions, and the wider water-security debate for Assam and the Brahmaputra basin.