Baisabi is a major sociocultural festival of the indigenous Buddhist people of Chittagong Hill Tracts and It is celebrated with a lot of joy and Excitement. The festival is also known as "Biju", "Shangrai" and "Baisuk" in different tribes of the hill tracts. Besides, it is the largest event of these community celebrated by sprinkling water at each other so that the previous year's sorrows are washed away.