<Table> <Tr> <Td> </Td> <Td> This article contains Tibetan script . Without proper rendering support, you may see very small fonts, misplaced vowels or missing conjuncts instead of Tibetan characters . </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article contains Tibetan script . Without proper rendering support, you may see very small fonts, misplaced vowels or missing conjuncts instead of Tibetan characters . </Td> </Tr> <P> The ngultrum (Dzongkha: དངུལ ་ ཀྲམ (ŋul'tram), symbol: Nu., code: BTN) is the currency of the Kingdom of Bhutan . It is subdivided into 100 chhertum (Dzongkha: ཕྱེད ་ ཏམ (tʃet'tam), spelled as chetrums on coins until 1979). The Royal Monetary Authority of Bhutan is the minting authority of the Ngultrum banknotes and coins . The Ngultrum is currently pegged to the Indian rupee at parity . </P> <P> Until 1789, the coins of the Cooch Behar mint circulated in Bhutan . Following this, Bhutan began issuing its own coins known as chetrum, mostly silver 1⁄2 rupees . Hammered silver and copper coins were the only types issued until 1929, when modern style silver 1⁄2 rupee coins were introduced, followed by bronze 1 paisa in 1931 (dated 1928). Nickel 1⁄2 rupee coins were introduced in 1950 . While the Cooch Behar mint coins circulated alongside Bhutan's own coins, decimalization was introduced in 1957, when Bhutan's first issue of coins denominated in naya paisa . The 1966 issues were 25 naya paisa, 50 naya paisa and 1 rupee coins, struck in cupro - nickel . </P>

What is the name of currency of bhutan