Explanation: The final agreement between the two was probably not too acrimonious, since Chandragupta gave Seleucus 500 war elephants, and Seleucus sent an ambassador to Chandragupta’s court.

• This ambassador was Megasthenes, and we owe much of the information that we have about Chandragupta to Indica, the account written by Megasthenes.
• The original of this work is lost, but many Greek historians had reproduced parts of his account describing the court of Chandragupta and his administration.

Source: Tamil Nadu NCERT