Coins were introduced as a method of payment around the 6th or 5th century BCE. The invention of coins is still shrouded in mystery.
Coins were brought to India through the Achaemenid Empire, as well as the successor kingdoms of Alexander the Great. Especially the Indo-Greek kingdoms minted (often bilingual) coins in the 2nd century BCE. The most beautiful coins of the classical age are said to have been minted by Samudragupta (335-376 CE), who portrayed himself as both conqueror and musician.