DEMAND FOR FEDERAL STRUCTURE TURNING VIOLENT Kathmandu, 9 May: Four persons were injured Wednesday in a police firing on demonstrators moving to overrun a police outpost at Kawaswoti in Nawalparasi. Clashes have erupted since Tuesday between Tharu, Chetri, Brahmin and othr communities in the western tarai district amid demands for a federal structure. Five persons were killed in and more that 30 were injured in a bombing attack min Janakpur during demand for a Mithila state Nearly two dozen protestors were injured in the far-West Wednesday amid opposition to bifurcating the region according to Maoist plans. nnnn