Bohag Bihu or
Rongali Bihu also called
Xaat Bihu is a traditional ethnic festival celebrated in the Northeastern Indian state of Assam and other parts of Northeastern India by the indigenous ethnic groups of Assam, and marks the beginning of the
Assamese New Year. The festival is of mostly aboriginal origin comprising Tibeto-Burman and Tai elements. It usually falls in the 2nd week of April, historically signifying the time of harvest. Every year it falls on the 14th day of April. The holiday unites the different native communities of Assam regardless of their backgrounds and promotes the celebration of ethnic diversity.