Assertion: empire's leader | /r/HasProperty | chandragupta
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Source sentences:
text: Having come into conflict in the east (305 BC) with the Maurya Empire, Seleucus I entered into an agreement with its leader, Chandragupta, whereby he ceded vast territory west of the Indus, including the Hindu Kush, modern-day Afghanistan, and the Balochistan province of Pakistan and offered his daughter in marriage to the Maurya Emperor to formalize the alliance.