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.
The narrative texts of the Sangam literature are called Melkannakku. These are 18 major works consisting of eight anthologies and ten idylls. They are considered the works of heroic poetry in which heroes are glorified and perpetual wars and cattle raids during that time are frequently mentioned.