Both the U.S. dollar and the Rupee are funny money -- fiat money. Fiat money has no value other than the confidence of the people using them and the ability of the rulers to manipulate perceptions. Since both are phony, you have to look to politics to see which will gain against the other in the short term. In the long term, the value of ALL fiat money, such as the Dollar and the Rupee goes to ZERO. Then the rulers institute a new funny money with a new name, or something like "New Dollars" or "New Rupees". Do you recall the currency that disappeared before the Rupee was instituted?