The term Bihu is a generic term by which not one, but three different important Assamese festivals are known: the Bohag Bihu, the Magh Bihu and Kati Bihu. In the springtime Bohag Bihu also called Rongali Bihu is celebrated. Bhogali bihu. Bhog meaning feast. Magh bihu is celebrated in the month of Magh or January. Kongali or Kati Bihu observed in October.