Definition: districts of the east especially districts to the east of Ayodhya and Pataliputra, such as Magadha, Vanga and others; nothing can definitely be said as to which districts were called Eastern by Panini and his followers Katyayana and Patanjali. A Varttika given in the Kasika but not traceable in the Mahabhasya defines Pragdesa as districts situated to the east of शरावती (probably the modern river Ravi or a river near that river): cf. प्रागुदञ्चौ विभजते हंसः क्षीरोदके यथा । विदुषां शब्दसिद्ध्यर्थे सा नः पातु शरावती ॥ Kas. on एङ् प्राचां देशे P. I. 1.75. There is a reading सरस्वती in some manuscript copies and सरस्वती is a wellknown river in the Punjab near Kuruksetra, which disappears in the sandy desert to the south: a reading इरावती is also found and इरावती may stand for the river Ravi. शरावती in Burma is simply out of consideration. For details see Vyakarana Mahabhasya Vol. VII. pp. 202-204 and 141-142 D. E. Society's Edition.