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.
Sabha or Mahasabha during the Chola empie referred to the exclusive assembly of Brahmans/gatherings of the adult male members in the agraharas, that is, the rent free brahmadeya villages. These assemblies enjoyed a large measure of autonomy.
Fa-hein, the first Chinese Buddhist traveller and monk, came to India during the reign of Gupta emperor Chandragupta II and wrote the book “Si- Yu-Ki” that gives the detail account of the political and social condition of that time.