Rupee - What leads to the change in the currency's value?

.....The RBI manages the value of the rupee with several tools, which involve controlling its supply in the market and, thus, making it cheap or expensive. "Some ways through which the RBI controls the movement of the rupee are changes in interest rates, relaxation or tightening of rules for fund flows, tweaking the cash reserve ratio (the proportion of money banks have to keep with the central bank) and selling or buying dollars in the open market," ........

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