The Cambridge History of India, Vol. I: Ancient India v1.c24.231

v1.c24.231

The fact, however, that this domination prevailed even to the end of the Achaemenian sway in 330 B.C. is furthermore proved by the call which Darius III, the last of the dynasty, was able to issue to Indian troops when making his final stand at Arbela to resist the Greek invasion of Persia by Alexander. According to Arrian (*Anab.* III, 8, 3–6), some of the Indian forces were grouped with their neighbours the Bactrians and with the Sogdians under the command of the satrap of Bactria, whereas those who were called 'mountainous Indians' followed the satrap of Arachosia. The Sakai appeared as independent allies under their leader Mauakes. These frontier troops were supplemented by a small force of elephants 'belonging to the Indians who lived this side of the Indus.'