Since India was under British rule, the rupee was pegged to the British pound. From 1927 to 1966, 13 rupees = 1 pound. The peg was maintained until 1966 when the rupee was devalued and pegged to the U.S. dollar at a rate of 7.5 rupees = 1 dollar. This peg lasted until the U.S. dollar was devalued in 1971.