Chandragupta Maurya defeated Seleucus in which year?

Chandragupta Maurya defeated Seleucus I Nicator during the Seleucid-Mauryan War, which occurred between 305 BCE and 303 BCE. The war concluded in 303 BCE with a peace treaty. According to the terms of the treaty: • Seleucus ceded several territories, including parts of Kamboja, Gandhara, and Balochistan, to Chandragupta Maurya. • Seleucus also offered a Macedonian princess in marriage to Chandragupta, symbolizing diplomatic relations. Thus, the correct answer is (c) 305 BC.