Analysis of information sources in references of the Wikipedia article "孔雀王朝" in Chinese language version.
the only direct evidence throwing light ....is that of Jain tradition. ...it may be that he embraced Jainism towards the end of his reign. ...after much consideration I am inclined to accept the main facts as affirmed by tradition .... no alternative account exists.
It was here, in the third century BC, that the first Emperor of India, Chandragupta Maurya, embraced the Jain religion and died through a self-imposed fast to the death,......
Megasthenes lived with Sibyrtius, satrap of Arachosia, and often speaks of his visiting Sandracottus, the king of the Indians.