Sunga Empire was founded by Pushyamitra Sunga who betrayed his master Brihadratha Maurya and defeated him in a war. He killed the Mauryan emperor and destroyed the Mauryan empire completely. Its capital was Pataliputra. Pushyamitra Shunga ruled for 36 years and was succeeded by his son Agnimitra. There were ten Shunga rulers. But after Agnimitra's death, the empire begun to broke up. 