Indo-Greek Kingdom:

-The kingdom was founded when the Graeco-Bactrian king Demetrius invaded India early in the 2nd century BC.

-The Greeks in India were eventually divided from the Graeco-Bactrians centered in Bactria (now the border between Afghanistan and Uzbekistan).

-But, the Greeks failed to establish a united rule in north-western India.

-The most famous Indo-Greek ruler was Menander (Milinda) who reached Patliputra.

-He had his capital at Sakala in Punjab, modern Pakistan, and he successfully invaded the Ganges-Yamuna doab.

-Indo-Greeks are credited with the introductions of Gold Coins in India.

-The Greek Ambassador, Heliodorus set up a pillar in honour of Vishnu at Vidisha in Madhya Pradesh.

-Heliodorus was the last King to rule over Bacteria and India.