Q. Where is the Heliodorus Pillar located in Madhya Pradesh?
Answer: Besnagar (Vidisha)
Notes: Besnagar, ancient Vidisha, was the Shunga dynasty capital in the 2nd century BCE. The Heliodorus Pillar there was erected by the Greek ambassador Heliodorus. It is one of the earliest Vaishnava monuments in India. Excavations by D.R. Bhandarkar at Besnagar provided valuable archaeological materials.