For 10 points, name this grandfather of Ashoka who founded the Maurya empire.
According to legend, this man proved his intelligence by melting a lion made of wax. According to Plutarch, this man is believed to have met Alexander the Great at Taxila and killed two Greek satraps. He gained much of his territory through a peace treaty with Seleucus I, in which he offered five hundred war elephants. His mentor, Chanakya, was regarded as the Indian Machiavelli, and the extent of his rule was as far as modern day Balochistan.  This ruler abdicated his throne for his son Bindusara in accordance with Jain tradition and became an ascetic. For 10 points, name this grandfather of Ashoka who founded the Maurya empire.
According to legend, this man proved his intelligence by melting a lion made of wax.
{Chandragupta Maurya} [prompt on Maurya]