US dollar ends marginally lower against rupee

The US dollar ended marginally lower against the rupee at 66.73/74 per dollar but the pound sterling finished higher at Rs 88.35/37 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 66.73/74 US Dollar Rs. 66.7612 Pound Sterling 88.35/37 Euro Rs. 74.5990 Euro 74.68/70
Japanese Yen (100) 65.55/57.