US dollar ends tad lower against rupee

The US dollar ended marginally lower against the rupee at 66.83/84 per dollar but the pound sterling finished higher at Rs 100.69/71 per pound at the close of the Interbank Foreign Exchange market today.
Following are the Interbank Forex and RBI rates:
(In Rs Per Unit)
Unit Interbank RBI Reference US Dollar 66.83/84 US Dollar Rs. 66.7500 Pound Sterling 100.69/71 Euro Rs. 72.8910 Euro 73.02/04
Japanese Yen(100) 54.