KOHIMA: August 1: The Aos are celebrating the weeklong "Tsungrem Mong" festival from Sunday. Tsungrem Mong, a pre-harvest festival, is the second biggest festival of the Ao tribe after the "Moatsu", which is celebrated in the first week of May. The significance of the festival is to pray for bountiful harvest. The weeklong festivities include colourful traditional dances, merry-making and community feasts.