Solution:Bihu is a major agricultural festival celebrated in the Indian state of Assam. It is a three part festival celebrated in three different seasons.Rongali Bihu is celebrated in the spring to mark the beginning of the Assamese New Year.
Kati Bihu is celebrated in the autumn to mark the end of the harvesting season.
Bhogali Bihu is celebrated in the winter to mark the end of the harvesting season and the beginning of the new agricultural year.