"Indeed Diodorus himself in another passage (VI.XCIII)1 tells us in general where Alexander would have touched it: "he had obtained from Phegus a description of the country beyond the Indus. First came a desert which it would take twelve days to traverse; beyond this was the river called the Ganges with a width of thirty-two stadia and a greater depth than any other river; beyond this again were situated the dominions of the nation of the Prasioi and the Gandaridai, whose king, Xandrames, had an army of 20,000 horses, 200,000 infantry, 2,000 chariots and 4,000 elephants trained and equipped for war.""
January 1, 1970
https://en.wikiquote.org/wiki/Gangaridai