The principal subdivisions of the tribe are the Diharia or Kisan
Korwas, those who live in villages (dih) and cultivate, and the
Paharia Korwas of the hills, who are also called Benwaria from their
practising bewar or shifting cultivation. Two minor groups are the
Koraku or young men, from kora, a young man, and the Birjias, who
are probably the descendants of mixed marriages between Korwas and
the tribe of that name, themselves an offshoot of the Baigas. The
tribe is also divided into totemistic exogamous septs.