Mumbai, June 23 -- The dollar index scales above 101 mark for the first time in more than a year on Tuesday amid growing indications of a Federal rate hike in the near future. The Federal Reserve's hawkish tone at its latest meeting is seen bolstering gains the U.S. dollar. However, the yield on the US 10-year Treasury note fell to 4.48% on Tuesday as markets reacted to signs that a US-Iran deal could move closer to a lasting agreement. The upcoming PCE inflation report, the Fed's preferred gauge, will be closely watched this week for further clarity. The dollar index that measures the greenback against a basket of currencies is quoting at 101.09. Among basket currencies, British pound weakened against a firmer US dollar but remained comf...