The Cambridge History of India, Vol. I: Ancient India v1.c27.33

v1.c27.33

Thus the year 305 saw the empire of the successful adventurer of Pātaliputra safely established behind the Hindu Kush on the north and the Afghān highlands rising above Herāt on the west. At what period it came to include also the western provinces of Sind, Kāthiāwār, and Gujarāt, which, as well as Mālwa, we find in the possession of his grandson, we are not informed. But probably these also were acquired by the founder of the dynasty.