US dollar ends a tad higher against rupee

The US dollar ended slightly higher against rupee at Rs 63.60/61 per dollar but the pound sterling finished weak at Rs 100.25/27 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 63.60/61 US Dollar Rs. 63.6600 Pound Sterling 100.25/27 Euro Rs. 71.3119 Euro 71.27/29
Japanese Yen(100) 51.