"This situation of theirs becomes even clearer in a passage from Diodorus elsewhere (XVIII.6):6 "(India) is inhabited by very many nations, among which the greatest of all is that of the Gandaridai against whom Alexander did not undertake an expedition, being deterred by the multitude of their elephants. This region is separated from farther India by the greatest river in those parts (for it has a breadth of thirty stadia), but it adjoins the rest of India which Alexander had conquered...""