Itanagar, Nov 7 (PTI) Four protesters detained over the proposed 11,200-MW Siang Upper Multipurpose Project (SUMP) in Arunachal Pradesh were released from Jully Central Jail near Itanagar on. The release of the four was among the Siang Indigenous Farmers' Forum's key demands before agreeing to participate in talks with the. The Arunachal Pradesh government released four protesters opposing the proposed Siang mega dam.