Seleucid–Mauryan War

Seleucid–Mauryan War
Part of Conquests of Maurya Empire

Alexander the Great's Eastern Satrapies in South Asia
Date305–303 BCE
Location
Northwestern India, chiefly the Indus River Valley
Result Strabo: "Seleucus Nicator gave [territories that lie along the Indus] to Sandrocottus [Chandragupta], upon terms of intermarriage and of receiving in exchange five hundred elephants."
Territorial
changes
Parts of Seleucid Empire's eastern satrapies ceded to the Maurya Empire: Gandhara, Paropamisadae, eastern part of Gedrosia, possibly also Arachosia and Aria up to modern-day Herat
Belligerents
Maurya Empire Seleucid Empire
Commanders and leaders
Chandragupta Maurya
Chanakya
Seleucus I Nicator
Strength
Unknown Unknown
Casualties and losses
Unknown Unknown

The Seleucid–Mauryan War was a confrontation between the Seleucid and Mauryan empires that took place somewhere between 305 and 303 BCE, when Seleucus I Nicator of the Seleucid Empire crossed the Indus river into the former Indian satrapies of the Macedonian Empire, which had been conquered by Emperor Chandragupta Maurya of the Maurya Empire.

The confrontation resulted in a dynastic marriage-alliance between Seleucus and Chandragupta, the gift of war elephants to Seleucus, and the transferring of control over the Indus Valley region and (possibly) part of Afghanistan to Chandragupta. The alliance freed Seleucus to turn his attention toward his rivals in the west, while Chandragupta secured control over the areas that he had sought, the Maurya Empire emerging as the dominant power of the Indian subcontinent.