The Geographical Dictionary of Ancient and Mediaeval India c5.s1.104

c5.s1.104

Áryâvartta—The northern part of India which lies between the Himalayas and the Vindhya range (Manu-Samhitâ, ch. 2, v. 22). At the time of Patañjali, Áryâvartta was bounded on the north by the Himalayas, on the south by the Pâriyâtraka, on the west by Âdarśâvalî (Vinaśana according to the Vasiṣṭha Samhitâ, I, 8), and on the east by Kâlakavana (Rajmahal hills). See Kalakavana. According to Râjaśekhara, the river Nerbuda was the boundary between Áryâvartta and Dakshiṇâpatha (Bâlarâmâyaṇa, Act VI; Apte's Râjaśekhara : his Life and Writings, p. 21).