The Kachari (Pron: kəˈʧɑ:rɪ) Kingdom (known as the Dimasa Kingdom in medieval times) was a powerful kingdom in medieval Assam, India. It established its political center in the Brahmaputra valley, but over the course of its history it migrated south over the North Cachar Hills(Dima Hasao) and had its finale in the Barak valley. At the time of British occupation, the country had divided into two regions: Tularam Hasnu Senapati's domain in the hills which became North Cachar Hills ( Dima Hasao District ) and Govinda Chandra Hasnu's domain in the valley that ultimately became the greater Cachar district, both in Assam.