Elderly persons perform bihu at the historic Rangghar premises as part of Rongali Bihu celebrations in Sivasagar, Assam on April 14, 2012. This is an ancient form of Bihu known as BURDHA BIHU (Old Men Bihu), Old men pariticipate and celebrate Bihu in their unique style dressed as NACHONI (Woman Dancer). Photo by Luit Chaliha/Indian Photo Agency