The rupee was quoting at 80.0550 per U.S. dollar by 0553 GMT compared with 79.8650 in the previous session. The local unit had fallen to a record low of 80.12 in the first couple of minutes of trade before RBI stepped in, traders said.Three traders, two at state-run banks and one at a private sector bank, told Reuters that RBI was selling dollars to arrest rupee's slide.