The Indian rupee (sign: ₹; code: INR) is the official currency of India. The rupee is subdivided into 100 paise (singular: paisa), though as of 2019, coins of denomination of 1 rupee is the lowest value in use. The issuance of the currency is controlled by the Reserve Bank of India.^[3] 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.

In 2010, a new rupee sign (₹) was officially adopted. It was designed by D. Udaya Kumar. It was derived from the combination of the Devanagari consonant "र" (ra) and the Latin capital letter "R" without its vertical bar (similar to the R rotunda). The parallel lines at the top (with white space between them) are said to make an allusion to the tricolour Indian flag,^[4] and also depict an equality sign that symbolises the nation's desire to reduce economic disparity. The first series of coins with the new rupee sign started in circulation on 8 July 2011. Before this, India used "Rs" and "Re" as the symbols for multiple rupees and one rupee, respectively.

On 8 November 2016, the Government of India announced the demonetisation of ₹500 and ₹1,000 banknotes^[5][6] with effect from midnight of the same day, making these notes invalid.^[7] A newly redesigned series of ₹500 banknote, in addition to a new denomination of ₹2,000 banknote is in circulation since 10 November 2016.^[8][9] The ₹1,000 note has been suspended.^[10]

On 25 August 2017, a new denomination of ₹200 banknote was added to the Indian currency structure to fill the gap of notes due to high demand for this note after demonetisation.^[11]

In July 2018, the Reserve Bank of India released the ₹100 banknote.^[12]

The word "rupee" was derived from the Sanskrit word rūpya (meaning "wrought silver, a coin of silver").^[13][14][15] Panini characterised rūpya as a stamped rūpa (which means a form in general, but probably a silver form in this case).^[16] Arthashastra, written by Chanakya, prime minister to the first Maurya emperor Chandragupta Maurya (c 340–290 BCE), mentions silver coins as rūpyarūpa. Other types of coins including gold coins (suvarṇarūpa), copper coins (tāmrarūpa) and lead coins (sīsarūpa) are also mentioned.

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,^[17] along with the Chinese wen and Lydian staters.^[18]

Arthashastra, written by Chanakya, prime minister to the first Maurya emperor Chandragupta Maurya (c. 340–290 BCE), mentions silver coins as rūpyarūpa, other types including gold coins (suvarṇarūpa), copper coins (tamrarūpa) and lead coins (sīsarūpa) are mentioned. Rūpa means form or shape, example, rūpyarūpa, rūpya – wrought silver, rūpa – form.^[19]

In the intermediate times there was no fixed monetary system as reported by the Da Tang Xi Yu Ji.^[20]

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.^[21][22] During Babar's time, the brass to silver exchange ratio was roughly 50:2.^[23] The silver coin remained in use during the Mughal period, Maratha era as well as in British India.^[24] 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).

Historically, the rupee was a silver coin. This had severe consequences in the nineteenth century when the strongest economies in the world were on the gold standard (that is, paper linked to gold). The discovery of large quantities of silver in the United States and several European colonies caused the panic of 1873 which resulted in a decline in the value of silver relative to gold, devaluing India's standard currency. This event was known as "the fall of the rupee." In Britain the Long Depression resulted in bankruptcies, escalating unemployment, a halt in public works, and a major trade slump that lasted until 1897.^[26]

India was unaffected by the imperial order-in-council of 1825, which attempted to introduce British sterling coinage to the British colonies. British India, at that time, was controlled by the British East India Company. The silver rupee coin continued as the currency of India through the British Raj and beyond. In 1835, British India adopted a mono-metallic silver standard based on the rupee coin; this decision was influenced by a letter written by Lord Liverpool in 1805 extolling the virtues of mono-metallism.

Following the First war of Independence in 1857, the British government took direct control of British India. Since 1851, gold sovereigns were produced en masse at the Royal Mint in Sydney, New South Wales. In an 1864 attempt to make the British gold sovereign the "imperial coin", the treasuries in Bombay and Calcutta were instructed to receive (but not to issue) gold sovereigns; therefore, these gold sovereigns never left the vaults. As the British government gave up hope of replacing the rupee in India with the pound sterling, it realised for the same reason it could not replace the silver dollar in the Straits Settlements with the Indian rupee (as the British East India Company had desired). Since the silver crisis of 1873, several nations switched over to a gold exchange standard (wherein silver or banknotes circulate locally but with a fixed gold value for export purposes), including India in the 1890s.^[27]

Around 1875, Britain started paying India for exported goods in India Council Bills (instead of silver).

The Indian Currency Committee or Fowler Committee was a government committee appointed by the British-run Government of India on 29 April 1898 to examine the currency situation in India.^[30] They collected a wide range of testimony, examined as many as forty-nine witnesses, and only reported their conclusions in July, 1899, after more than a year's deliberation.^[25]

The committee concurred in the opinion of the Indian government that the mints should remain closed to the unrestricted coinage of silver, and that a gold standard should be adopted without delay...they recommended (1) that the British sovereign be given full legal tender power in India, and (2) that the Indian mints be thrown open to its unrestricted coinage (for gold coins only). These recommendations were acceptable to both governments, and were shortly afterwards translated into laws. The act making gold a legal tender was promulgated on September 15, 1899 ; and preparations were soon thereafter undertaken for the coinage of gold sovereigns in the mint at Bombay.^[25] This law was just to defraud Indian people, as gold sovereign coins were never minted in India.

In 1913 John Maynard Keynes writes in his book Indian Currency and Finance that during financial year 1900–1901, gold coins (sovereigns) worth of £6,750,000 were given to Indian people in the hope that it will circulate as currency. But against the expectation of Government, even half of that were not returned to Government, and this experiment failed spectacularly, so Government abandoned this practice (but did not abandon the narrative of gold standard). As a punishment to this loss of gold, all gold held by Government of India was shipped to Bank of England in 1901. ^[32]

At the onset of the First World War, the cost of gold was very low and therefore the pound sterling had high value. But during the First World War, the value of the pound fell alarmingly due to rising war expenses. At the conclusion of the war, the value of the pound was only a fraction of what it used to be prior to the commencement of the war. It remained low until 1925, when the then Chancellor of the Exchequer (finance minister) of the United Kingdom, Winston Churchill, restored it to pre-War levels. As a result, the price of gold fell rapidly. While the rest of Europe purchased large quantities of gold from the United Kingdom, there was little increase in her gold reserves. This dealt a blow to an already deteriorating British economy. The United Kingdom began to look to its possessions as India to compensate for the gold that was sold.^[33]

During 1931 to 1941, England purchased large amount of gold from India and its many other colonies just by increasing price of gold, as England was able to pay in printable paper currency. Similarly, on 19 June 1934, Roosevelt made Silver purchase act, (which increased price of silver) and purchased about 44,000 tons of silver by paying paper certificates (silver certificate).^[36]

In 1939, Dickson H. Leavens wrote in his book 'Silver Money': "In recent years the increased price of gold, measured in depreciated paper currencies, has attracted to the market (of London) large quantities (of gold) formerly hoarded or held in the form of ornaments in India and China".^[35]

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 British 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).^[37] Some of the states had issued rupees equal to those issued by the British (such as the Travancore rupee). Other currencies (including the Hyderabadi rupee and the Kutch kori) had different values.

The values of the subdivisions of the rupee during British rule (and in the first decade of independence) were:

In 1957, the rupee was decimalised and divided into 100 naye paise (Hindi for "new paise"); in 1964, the initial "naye" was dropped. Many still refer to 25, 50 and 75 paise as 4, 8 and 12 annas respectively, similar to the usage of "two bits" in American English for a quarter-dollar.

As the Straits Settlements were originally an outpost of the British East India Company, In 1837, the Indian rupee was made the sole official currency in the Straits Settlements, as it was administered as part of British India. This attempt was resisted by the locals. However, Spanish dollars continued to circulate and 1845 saw the introduction of coinage for the Straits Settlements using a system of 100 cents = 1 dollar, with the dollar equal to the Spanish dollar or Mexican peso. In 1867, administration of the Straits Settlements was separated from India and the Straits dollar was made the standard currency, and attempts to reintroduce the rupee were finally abandoned.^[38]

After the Partition of India, the Pakistani rupee came into existence, initially using Indian coins and Indian currency notes simply overstamped with "Pakistan". Previously the Indian rupee was an official currency of other countries, including Aden, Oman, Dubai, Kuwait, Bahrain, Qatar, the Trucial States, Kenya, Tanganyika, Uganda, the Seychelles and Mauritius.

The Indian government introduced the Gulf rupee – also known as the Persian Gulf rupee (XPGR) – as a replacement for the Indian rupee for circulation outside the country with the Reserve Bank of India (Amendment) Act of 1 May 1959. The creation of a separate currency was an attempt to reduce the strain on India's foreign reserves from gold smuggling. After India devalued the rupee on 6 June 1966, those countries still using it – Oman, Qatar, and the Trucial States (which became the United Arab Emirates in 1971) – replaced the Gulf rupee with their own currencies. Kuwait and Bahrain had already done so in 1961 with Kuwaiti dinar and in 1965 with Bahraini dinar, respectively.^[39]

The Bhutanese ngultrum is pegged at par with the Indian rupee; both currencies are accepted in Bhutan. The Nepalese rupee is pegged at ₹0.625; the Indian rupee is accepted in Bhutan and Nepal, except ₹500 and ₹1000 banknotes of the Mahatma Gandhi Series and the ₹200, ₹500 and ₹2,000 banknotes of the Mahatma Gandhi New Series, which are not legal tender in Bhutan and Nepal and are banned by their respective governments, though accepted by many retailers.^[40] On 29 January 2014, Zimbabwe added the Indian rupee as a legal tender to be used.^[1][41]

The three Presidencies established by the British East India Company (Bengal, Bombay and Madras) each issued their own coinages until 1835. All three issued rupees and fractions thereof down to ​1⁄8- and ​1⁄16-rupee in silver. Madras also issued two-rupee coins.

Copper denominations were more varied. Bengal issued one-pie, ​1⁄2-, one- and two-paise coins. Bombay issued 1-pie, ​1⁄4-, ​1⁄2-, 1-, 1​1⁄2-, 2- and 4-paise coins. In Madras there were copper coins for two and four pies and one, two and four paisa, with the first two denominated as ​1⁄2 and one dub (or ​1⁄96 and ​1⁄48) rupee. Madras also issued the Madras fanam until 1815.

All three Presidencies issued gold mohurs and fractions of mohurs including ​1⁄16, ​1⁄2, ​1⁄4 in Bengal, ​1⁄15 (a gold rupee) and ​1⁄3 (pancia) in Bombay and ​1⁄4, ​1⁄3 and ​1⁄2 in Madras.

In 1835, a single coinage for the EIC was introduced. It consisted of copper ​1⁄12, ​1⁄4 and ​1⁄2 anna, silver ​1⁄4, ​1⁄3 and 1 rupee and gold 1 and 2 mohurs. In 1841, silver 2 annas were added, followed by copper ​1⁄2 pice in 1853. The coinage of the EIC continued to be issued until 1862, even after the Company had been taken over by the Crown.

In 1862, coins were introduced (known as "regal issues") which bore the portrait of Queen Victoria and the designation "India". Their denominations were ​1⁄12 anna, ​1⁄2 pice, ​1⁄4 and ​1⁄2 anna (all in copper), 2 annas, ​1⁄4, ​1⁄2 and one rupee (silver), and five and ten rupees and one mohur (gold). The gold denominations ceased production in 1891, and no ​1⁄2-anna coins were issued after 1877.

In 1906, bronze replaced copper for the lowest three denominations; in 1907, a cupro-nickel one-anna coin was introduced. In 1918–1919 cupro-nickel two-, four- and eight-annas were introduced, although the four- and eight-annas coins were only issued until 1921 and did not replace their silver equivalents. In 1918, the Bombay mint also struck gold sovereigns and 15-rupee coins identical in size to the sovereigns as an emergency measure during the First World War.

In the early 1940s, several changes were implemented. The ​1⁄12 anna and ​1⁄2 pice ceased production, the ​1⁄4 anna was changed to a bronze, holed coin, cupro-nickel and nickel-brass ​1⁄2-anna coins were introduced, nickel-brass was used to produce some one- and two-annas coins, and the silver composition was reduced from 91.7 to 50 percent. The last of the regal issues were cupro-nickel ​1⁄4-, ​1⁄2- and one-rupee pieces minted in 1946 and 1947, bearing the image of George VI, King and Emperor on the obverse and an Indian Lion on the reverse.

India's first coins after independence were issued in 1950 in denominations of 1 pice, ​1⁄2, one and two annas, ​1⁄4, ​1⁄2 and one-rupee. The sizes and composition were the same as the final regal issues, except for the one-pice (which was bronze, but not holed).

The first decimal-coin issues in India consisted of 1, 2, 5, 10, 25 and 50 naye paise, and 1 rupee. The 1 naya paisa was bronze; the 2, 5, and 10 naye paise were cupro-nickel, and the 25 naye paise (nicknamed chawanni; 25 naye paise equals 4 annas), 50 naye paise (also called athanni; 50 naye paise equalled 8 old annas) and 1-rupee coins were nickel. In 1964, the words naya/naye were removed from all coins. Between 1957 and 1967, aluminium one-, two-, three-, five- and ten-paise coins were introduced. In 1968 nickel-brass 20-paise coins were introduced, and replaced by aluminium coins in 1982. Between 1972 and 1975, cupro-nickel replaced nickel in the 25- and 50-paise and the 1-rupee coins; in 1982, cupro-nickel two-rupee coins were introduced. In 1988 stainless steel 10-, 25- and 50-paise coins were introduced, followed by 1- and 5-rupee coins in 1992. Five-rupee coins, made from brass, are being minted by the Reserve Bank of India (RBI).

Between 2005 and 2008 new, lighter fifty-paise, one-, two-, and five-rupee coins were introduced, made from ferritic stainless steel. The move was prompted by the melting-down of older coins, whose face value was less than their scrap value. The demonetisation of the 25-paise coin and all paise coins below it took place, and a new series of coins (50 paise – nicknamed athanni – one, two, five, and ten rupees with the new rupee sign) were put into circulation in 2011. Coins commonly in circulation are one, two, five, and ten rupees.^[42][43] Although it is still legal tender, the 50-paise (athanni) coin is rarely seen in circulation.^[44]

The coins are minted at the four locations of the India Government Mint. The ₹1, ₹2, and ₹5 coins have been minted since independence. The Government of India is going to introduce ₹20 with dodecagonal shape coin along with new grain design series with ₹1, ₹2, ₹5 and ₹10 announced on 6 March 2019^[46].

The Government of India has the only right to mint the coins and one rupee note. The responsibility for coinage comes under the Coinage Act, 1906 which is amended from time to time. The designing and minting of coins in various denominations is also the responsibility of the Government of India. Coins are minted at the five India Government Mints at Mumbai, Alipore (Kolkata), Saifabad (Hyderabad), Cherlapally (Hyderabad) and NOIDA (UP). The coins are issued for circulation only through the Reserve Bank in terms of the RBI Act.^[47]

After independence, the Government of India mint, minted numismatics coins imprinted with Indian statesmen, historical and religious figures. In the years 2010 and 2011 for the first time ever ₹75, ₹150 and ₹1000 coins were minted in India to commemorate the Platinum Jubilee of the Reserve Bank of India, the 150th birth anniversary of the birth of Rabindranath Tagore and 1000 years of the Brihadeeswarar Temple, respectively. In 2012 a ₹60 coin was also issued to commemorate 60 years of the Government of India Mint, Kolkata. ₹100 coin was also released commemorating the 100th anniversary of Mahatma Gandhi's return to India.^[48] Commemorative coins of ₹125 were released on 4 September 2015 and 6 December 2015 to honour the 125th anniversary of the births of Sarvepalli Radhakrishnan and B. R. Ambedkar, respectively.^[49][50]

In 1861, the Government of India introduced its first paper money: ₹10 note in 1864, ₹5 note in 1872, ₹10,000 note in 1899, ₹100 note in 1900, ₹50 note in 1905, ₹500 note in 1907 and ₹1,000 note in 1909. In 1917, ₹1 and ₹2​1⁄2 notes were introduced. The Reserve Bank of India began banknote production in 1938, issuing ₹2, ₹5, ₹10, ₹50, ₹100, ₹1,000 ad ₹10,000 notes while the government continued issuing ₹1 note but demonetized the ₹500 and ₹2​1⁄2 notes.

After independence, new designs were introduced to replace the portrait of George VI. The government continued issuing the Re1 note, while the Reserve Bank issued other denominations (including the ₹5,000 and ₹10,000 notes introduced in 1949). All pre-independence banknotes were officially demonetised with effect from 28 April 1957.^[51][52]

During the 1970s, ₹20 and ₹50 notes were introduced; denominations higher than ₹100 were demonetised in 1978. In 1987, the ₹500 note was introduced, followed by the ₹1,000 note in 2000 while ₹1 and ₹2 notes were discontinued in 1995.

The design of banknotes is approved by the central government, on the recommendation of the central board of the Reserve Bank of India.^[3] Currency notes are printed at the Currency Note Press in Nashik, the Bank Note Press in Dewas, the Bharatiya Reserve Bank Note Mudran (P) Ltd at Salboni and Mysore and at the Watermark Paper Manufacturing Mill in Hoshangabad. The Mahatma Gandhi Series of banknotes are issued by the Reserve Bank of India as legal tender. The series is so named because the obverse of each note features a portrait of Mahatma Gandhi. Since its introduction in 1996, this series has replaced all issued banknotes of the Lion capital series. The RBI introduced the series in 1996 with ₹10 and ₹500 banknotes. At present, the RBI issues banknotes in denominations from ₹5 to ₹2,000. The printing of ₹5 notes (which had stopped earlier) resumed in 2009.

As of January 2012, the new '₹' sign has been incorporated into banknotes of the Mahatma Gandhi Series in denominations of ₹10, ₹20, ₹50, ₹100, ₹500 and ₹1,000.^{[53][54][55][56]} In January 2014 RBI announced that it would be withdrawing from circulation all currency notes printed prior to 2005 by 31 March 2014. The deadline was later extended to 1 January 2015. The dead line was further extended to 30 June 2016.^[57]

On 8 November 2016, the Reserve Bank of India (RBI) announced the issuance of new ₹500 and ₹2,000 banknotes in new series. The new ₹2,000 banknote has a magenta base colour, with a portrait of Mahatma Gandhi as well as the Ashoka Pillar Emblem on the front. The denomination also has a motif of the Mars Orbiter Mission (MOM) on the back, depicting the country's first venture into interplanetary space. The new ₹500 banknote has a stone grey base colour with an image of the Red Fort along with the Indian flag printed on the back. Both the banknotes also have the Swachh Bharat Abhiyan logo printed on the back. The banknote denominations of ₹200, ₹100 and ₹50 have also been introduced in the new Mahatma Gandhi New Series intended to replace all banknotes of the previous Mahatma Gandhi Series.^[58] On 13 June 2017, RBI introduced new ₹50 notes, but the old ones continue being legal tender. The design is similar to the current notes in the Mahatma Gandhi (New) Series, except they will come with an inset 'A'.

As of 26 April 2019, current circulating banknotes are in denominations of ₹5 from the [Old Mahathma Gandhi Series], ₹10, ₹20, ₹50 and ₹100 from the New Mahatma Gandhi Series, in denominations of ₹10, ₹20,^[59] ₹50, ₹100, ₹200, ₹500 and ₹2,000 from the Mahatma Gandhi New Series.

The new Indian banknote series feature a couple of brilliant micro printed texts on various locations. The first one lies on the inner surface of the left temple of Gandhi's spectacles that reads "भारत" which means India. The next one (which are printed only on 10 and 50 denominations) is placed on the outer surface of the right temple of Gandhi's spectacles near his ear and reads "RBI" and the face value in numerals "10" or "50". The last one is written on both sides of Gandhi's collar and reads "भारत" and "INDIA" respectively.

Officially, the Indian rupee has a market-determined exchange rate. However, the RBI trades actively in the USD/INR currency market to impact effective exchange rates. Thus, the currency regime in place for the Indian rupee with respect to the US dollar is a de facto controlled exchange rate. This is sometimes called a "managed float". Other rates (such as the EUR/INR and INR/JPY) have the volatility typical of floating exchange rates, and often create persistent arbitrage opportunities against the RBI.^[62] Unlike China, successive administrations (through RBI, the central bank) have not followed a policy of pegging the INR to a specific foreign currency at a particular exchange rate. RBI intervention in currency markets is solely to ensure low volatility in exchange rates, and not to influence the rate (or direction) of the Indian rupee in relation to other currencies.^[63]

Also affecting convertibility is a series of customs regulations restricting the import and export of rupees. Legally, only up to ₹25000 can be imported or exported in cash at a time, and the possession of ₹200 and higher notes in Nepal is prohibited.^[64][65] The conversion of currencies for and from rupees is also regulated.

RBI also exercises a system of capital controls in addition to (through active trading) in currency markets. On the current account, there are no currency-conversion restrictions hindering buying or selling foreign exchange (although trade barriers exist). On the capital account, foreign institutional investors have convertibility to bring money into and out of the country and buy securities (subject to quantitative restrictions). Local firms are able to take capital out of the country in order to expand globally. However, local households are restricted in their ability to diversify globally. Because of the expansion of the current and capital accounts, India is increasingly moving towards full de facto convertibility.

There is some confusion regarding the interchange of the currency with gold, but the system that India follows is that money cannot be exchanged for gold under any circumstances due to gold's lack of liquidity; therefore, money cannot be changed into gold by the RBI. India follows the same principle as Great Britain and the US.

Reserve Bank of India clarifies its position regarding the promissory clause printed on each banknote:

"As per Section 26 of Reserve Bank of India Act, 1934, the Bank is liable to pay the value of banknote. This is payable on demand by RBI, being the issuer. The Bank's obligation to pay the value of banknote does not arise out of a contract but out of statutory provisions.The promissory clause printed on the banknotes i.e., "I promise to pay the bearer an amount of X" is a statement which means that the banknote is a legal tender for X amount. The obligation on the part of the Bank is to exchange a banknote for coins of an equivalent amount." ^[66]

For almost a century following the Great Recoinage of 1816, and adoption of the Gold Standard, until the outbreak of World War I, the silver backed Indian rupee lost value against a basket of Gold pegged currencies, and was periodically devalued to reflect the then current gold to silver reserve ratios, see above. In 1850 the official conversion rate between a pound sterling and the rupee was £0 / 2s / 0d (or £1:₹10), while between 1899–1914 the conversion rate was set at £0 / 1s / 4d (or £1:₹15), for comparison during this period the US dollar was pegged at £1:$4.79. Between the wars the rate improved to 1s 6d (or £1:₹13.33), and remained pegged at this rate for the duration of the Breton Woods agreement, to its devaluation and pegging to the US dollar, at $1:₹7.50, in 1966.^[72][73]

The £ was devalued against the $ in 1949, impacting currencies that maintained a peg to sterling, such as the ₹.

The gold silver ratio expanded during 1870–1910. Unlike India, Britain was on gold standard. To meet the Home Charges (i.e., expenditure in England) the colonial government had to remit a larger number of rupees and this necessitated increased taxation, unrest and nationalism.