A late-medieval kingdom of the Dimasa (Kachari) people in the hills and plains south of the Brahmaputra, one of the successor polities that arose in the wake of the ancient Kamarupa kingdom. Pushed by constant warfare with the Ahoms, its capital migrated from Dimapur to the hill fastness of Maibang and finally to Khaspur in the Cachar plains. Its plains were annexed by the British in 1832, its hills in 1834, ending nearly a millennium of Kachari rule.
British annexation: the plains in 1832 and the North Cachar hills in 1834 (with the Tularam Hasnu territory annexed 1854), ending the kingdom.
The atlas holds 2 border frames for Dimasa (Kachari) Kingdom — the shape you scrub through changes in 1500 · 1515.
Contains the standard chapter 'The Kacharis'; the classic account of the Dimasa kingdom and its fall (verified; widely reprinted).