Battle of Ipsus
Chandragupta sent 500 war elephants to Seleucus, which played a key role in Seleucus' victory at the Battle of Ipsus. In addition to this treaty, Seleucus dispatched Megasthenes as an ambassador to Chandragupta's court, and later Antiochos sent Deimakos to his son Bindusara at the Maurya court at Patna.