Coins of the Indian rupee 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. The word "naya" was dropped in 1964 and a new denomination, the 3 paisa, was introduced into circulation. A 20 paisa coin was minted in 1968. Neither of these coins gained much popularity. The 1, 2 and 3 paisa coins were phased out gradually in the 1970s. In 1982, a new 2 rupee coin was introduced experimentally to replace 2 rupee notes. The 2 rupee coin was not minted again
Coins of British India mohurs were proof issues. Varieties with both the younger and mature busts exist. Currency and proof issues of the 1862 dated rupee coins have a number of different obverse and reverse die varieties, which are helpful in identification of the mint. The design of the coin, however, remained largely unchanged. From 1863 till 1875, the Bombay mint introduced an unusual system of dots to date the coins. These dots occur on the reverse below the date, above the word 'ONE', or in both positions. From 1874, this practice was halted and coins began to be dated continuously. From this development,