Traffic movement in the Capital has been affected due to a demonstration of the Federal Alliance that began this morning. Hundreds of cadres of the Alliance had picketed Singha Darbar, the central government complex, this morning. Cadres of 30 parties associated with the Alliance are protesting at Hanumansthan and Maitighar Mandala, the southeastern and southwestern points outside Singha Darbar respectively. The agitators have demanded rewriting of the Constitution to incorporate their rights.