The earliest Satavahana inscriptions belong to the 1st century BCE. In the 1st century BCE the Satavahana defeated the Kanvas and established their rule over parts of central India.
Heliodorus was the Greek ambassador of Indo-Greek king Antialcidas Nikephoros of Taxila in the court of Sunga King Bhagbhadra. He erected famous votive Heliodorus pillar around 110 BC near Vidisha, Madhya Pradesh.