KATHMANDU, Oct 23: The Nepal Engineers Association, Bagmati Pradesh and the official trade union of civil servants have staged a protest at Maitighar Mandala on Friday demanding arrest of C.K Raut, leader of Janamat Party after Rajesh Kushwaha, chief of the Department of Water Supply and Sewerage Management (DWSSM), Janakpur, and other employees were mistreated by cadres of the Janamat Party.