Bhaga, Bhoga, Kara and Hiranya refers to the different types of revenues which were collected by the rulers during the early medieval period. They were the chief sources of revenue to the donees.
The Mauryan art is believed to be inspired from Achaemenid or Persian influence. We can find a lot of similarities in terms of form and style in the inscriptions of Ashoka and the Persian king Darius.
EXAMIANS