<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (November 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> Coins of the Indian rupee were first minted in 1950 . New coins have been produced annually since then and they make up a valuable aspect of the Indian currency system . Today, circulating coins exist in denominations of 50 p (i.e. 50 paisa or ₹ 0.50), ₹ 1, ₹ 2, ₹ 5, and ₹ 10 . All of these are produced by four mints located across India, in Kolkata, Mumbai, Hyderabad and Noida . </P> <P> After Indian independence, British Indian coins were in use as a frozen currency until India became a republic in 1950 . The first rupee coins of the Republic of India were minted in 1950 . These included 1 / 2 rupee, 1 / 4 rupee, 2 anna, 1 anna, 1 / 2 anna & 1 pice coins, and are referred to as the anna series or pre-decimal coinage . Under the anna series, one rupee was divided into 16 annas or 64 pice, with each anna equal to 4 pice . </P> <P> In 1957, India shifted to the decimal system, though for a short period of time, both decimal and non-decimal coins were in circulation . To distinguish between the two pice coins in circulation, the coins minted between 1957 and 1964 were printed with the legend "Naya Paisa" ("New Paisa"). The denominations in circulation were 1, 2, 3, 5, 10, 20, 25, 50 (naya) paisa and one rupee . Since rupees retained their pre-decimal value, pre-decimal coins of one, half and quarter rupees remained in circulation after decimalisation . </P>

When was 1 rupee coin introduced in india