These castes, as well as the mandarins, who form a class by themselves, are exempt from tax or forced service.
It is only in the institutes of Manu, where we find the system of castes propounded in its complete development, that Brahma has his definite place assigned to him in the cosmogony.
There are, however, in certain respects at certain periods, evidences of such changes as might be due to the intrusion of small conquering castes, which adopted the superior civilization of the conquered people and became assimilated to the latter.
There are six main divisions of the people: the Dravidian tribes, who formerly held the country; Hindi-speaking immigrants from the north and north-west into Saugor, Damoh, the Nerbudda valley and the open country of Mandla and Seoni; Rajasthani-speaking immigrants from Central India into Nimar, Betul and parts of Hoshangabad, Narsinghpur and Chhindwara; Marathi-speaking immigrants from Bombay into Berar, the Mahratta districts and the southern tahsil of Betul; the Telugu castes in the Sironcha and Chanda tahsil of Chanda and the south of Bastar; and the Hindu immigrants into Chhattisgarh, who are supposed to have arrived many centuries ago when the Haihaya dynasty of Ratanpur rose into power.
As in the rest of Indo-China, there is no hereditary nobility, but there exist castes founded on blood relationship - the members of the royal family within the fifth degree (the Brah-Vansa) those beyond the fifth degree (BrahVan), and the Bakou, who, as descendants of the ancient Brahmans, exercise certain official functions at the court.