When was the decimal system of currency introduced in India?
In 1957, India shifted to the decimal system, but for a short period both decimal and non-decimal coins were in circulation. To distinguish between the two, the coins minted between 1957 and 1964 have the legend “Naya Paisa” (“new” paisa). The denominations in circulation were 1, 2, 5, 10, 20, 25, 50 paise and 1 rupee.