Among the ethnic groups in Chittagong Hill Tracts the Khumis were the war like people. Earlier they were very often engaged in internecine or intertrinal warfare with the Bawms and the Mros. The Khumis used to live in Arakan; when there was fierce battle between them and the Mros, the latter being defeated fled to Chittagong Hill Tracts. But later the Khumis themselves entered Chittagong Hill Tracts after being defeated by a more powerful tribe.