The Vasistha Dharma Sutra (oldest sutras ca. 500-300 BCE) I.8-9 and 12-13 locates the Āryāvarta to the east of the disappearance of the Sarasvati River in the desert, to the west of the Kālakavana, to the north of the Pariyatra Mountains and the Vindhya Range and to the south of the Himalayas.