Buddhism is the third-largest religion, at 0.6 percent. Bangladeshi Buddhists are concentrated among ethnic groups in the Chittagong Hill Tracts (particularly the Chakma, Marma and Tanchangya peoples), while coastal Chittagong is home to a large number of Bengali Buddhists. Although the Mahayana school of Buddhism was historically prevalent in the region, Bangladeshi Buddhists today adhere to the Theravada school. Buddha's Birthday is a public holiday. The chief Buddhist priests are based at a monastery in Chittagong.