The Indian Rupee (International Currrency Code: INR) is the official currency in India. Reserve Bank of India (RBI) controls the issue of the currency. Rs. is the common symbol for INR. One Rupee is equal to 100 paise. The singular for paise is paisa. Sometimes it is referred to as the Naya (new) Paisa.
Rupee is derived from the root Sanskrit word Rupyakam - meaning a silver coin. Most Indians will understand 'Rupee', though local languages might have different words for the currency.