The Vasistha Dharma Sutra I.8-9 and 12-13 locates Aryavarta to the east of the disappearance of the Sarasvati in the desert, to the west of Kalakavana, to the north of the mountains of Pariyatra and Vindhya and to the south of the Himalaya. Baudhayana Dharmasutra (BDS) 126.96.36.199 gives similar definitions and declares that Aryavarta is the land that lies west of Kalakavana, east of Adarsana, south of the Himalayas and north of the Vindhyas. In BDS 188.8.131.52 Aryavarta is confined to the Ganga - Yamuna doab, and BDS 184.108.40.206-15. Some sutras recommend expiatory acts for those who have crossed the boundaries of Aryavarta. Baudhayana Srautasutra recommends this for those who have crossed the boundaries of Aryavarta and ventured into far away places
Patanjali's defines Aryavarta like the Vasistha Dharma Sutra.
Aryavarta may thus have different definitions. In some later texts, Northwest-India (which earlier texts consider as part of "Aryavarta") is even seen as "impure", probably due to invasions. The Karnaparva 43.5-8 states that those who live on the Sindhu and the five rivers of the Punjab are impure and dharmabahya.