The Manindra Chandra Nandy Lectures 1924: the Age of the Imperial Guptas

They were a powerful nation whose depredations in the country to the south of the Ganges compelled' the kings of Magadha to build a strong fort at the confluence - of that river with the Soli which became the ucleus of the great city of Elitaliputra. [...] The repeated treachery of the Drahmana ministers of Magadha at last laid the people of Magadha prostrate at the feet of Dravidian conqueror and after the Satavahana conquest Magadha ceased to be the leader of Indian nations and Pataliputra the metropolis of India. [...] The established practice of Gupta coins is to put the real name of the king oil the margin of the obverse or at the foot of the royal figure in a vertical lint and his birudas on the reverse or else-. where. [...] The discovery of the Poona plates of Prabhavatigupta has establised the fact that the Ganj and Nachna inscritions cannot be assigned to the 7th century A. D. The mention of Vyaghra proves that Prthivise4a the grandfather of Pravarasena II was the cotemporary of Samudragupta. [...] According to Cunningham the age of these coins range from 250 B. C. to 350 A. D. The earliest of them were issued in the name of the tribal republic of the Malavas with the legend Mtaavilsetrit jayala 1 Victory to the Malavas." Some of them use the word Gana zdenoting that they were tribal coins of the Malaya republic.