Coins are a valuable archaeological source of information. They help in gaining knowledge about ancient India in the following ways:
i) The way of life and the administration of reigning kings of the past are known through coins.
ii) An idea about the economy of the past is gained from them.
iii) The extent of the king's empire is known.
iv) The trade policies and routes are highlighted.
v) Art and religion of the particular period also comes to light.