Kati Bihu is celebrated on the first day of the ‘Kati’ month in the Assamese calendar. The festival marks the relocation of the rice crop and the beginning of the fresh harvest season. Kati Bihu is an observation of service, penance, and hope for a better future. The festival is celebrated across the state of Assam — although all Assamese tribes have their own rituals and interpretations of the day. Lamps are lit outside the homes, and a bamboo pathway is constructed as a trail for the ancestors.