What were Chandragupta's accomplishments?

Answer 1

Chandragupta's achievements, which ranged from conquering Macedonian satrapies in the northwest and conquering the Nanda Empire by the time he was only about 20 years old, to achieving an alliance with Seleucus I Nicator and establishing centralized rule throughout South Asia, remain some of the most celebrated in the history of India. Over two thousand years later, the accomplishments of Chandragupta stand out in the history of South Asia.

http://en.wikipedia.org/wiki/Chandragupta_Maurya