Chandragupta Maurya (350-295 BCE) was a ruler of Ancient India who expanded a geographically-extensive kingdom based in Magadha and founded the Maurya dynasty. He reigned from 320 BCE to 298 BCE. The Maurya kingdom expanded to become an empire that reached its peak under the reign of his grandson, Asoka, from 268 BCE to 231 BCE. The nature of the political formation that existed in Chandragupta's time is not certain. The Mauryan empire was a loose-knit empire.