The Greek ambassador Megasthenes was in the court of which Indian ruler?

The Greek ambassador Megasthenes was in the court of Chandragupta Maurya. Sent by Seleucus I Nicator, Megasthenes served as an ambassador and authored the influential work 'Indica,' which provides invaluable insights into Mauryan administration, society, and geography, making him a crucial source for understanding this period.

• Ashoka was Chandragupta's grandson; Megasthenes's tenure predates Ashoka's reign.
• Samudragupta was a prominent ruler of the Gupta Empire, which flourished centuries after the Mauryan period.
• Harshavardhana was an emperor who ruled in the 7th century CE, long after the Mauryan era.