Q. Heliodorus was the Greek ambassador of which of the following Indo-Greek kings? Answer: Antialcidas Nikephoros
Notes: 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.