INR - Indian Rupee: Indian Rupee denoted by ? sign which was officially adopted in 2010 is the official currency of India. The issuance of the currency is controlled by the Reserve Bank of India. The Reserve Bank manages currency in India and derives its role in currency management on the basis of the Reserve Bank of India Act, 1934. The history of the Indian rupee traces back to ancient India in circa 6th century BCE, ancient India was one of the earliest issuers of coins in the world, along with the Chinese wen and Lydian staters. Arthashastra, written by Chanakya, prime minister to the first Maurya emperor Chandragupta Maurya (c. 340–290 BCE), mentions silver coins as rupyarupa, other types including gold coins (suvar?arupa), copper coins (tamrarupa) and lead coins (sisarupa) are mentioned. During his five-year rule from 1540 to 1545, Sultan Sher Shah Suri issued a coin of silver, weighing 178 grains (or 11.53 grams), which was also termed the rupiya. During Baburs time, the brass to silver exchange ratio was roughly 50:2. The silver coin remained in use during the Mughal period, Maratha era as well as in British India. Among the earliest issues of paper rupees include; the Bank of Hindustan (1770–1832), the General Bank of Bengal and Bihar (1773–75, established by Warren Hastings), and the Bengal Bank (1784–91). The Indian rupee replaced the Danish Indian rupee in 1845, the French Indian rupee in 1954 and the Portuguese Indian escudo in 1961. Following the independence of India in 1947 and the accession of the princely states to the new Union, the Indian rupee replaced all the currencies of the previously autonomous states (although the Hyderabadi rupee was not demonetised until 1959).
Source: State Bank of Pakistan