Forward dollar premiums continued to rule weak on persistent receipts by exporters.
The benchmark six-month forward dollar premium payable in January tumbled to 236-240 paise from Wednesday's close of 246-250 paise. Far-forward contracts maturing in July plunged to 445-450 paise from 465-470 paise.
The RBI fixed the reference rate for the dollar at 65.4207 and for the euro at 87.3176.
The rupee recovered slightly to 100.50 against the pound sterling from 100.57 and also rebounded against the Japanese yen to 65.41 per 100 yen from 65.81.
However, it eased further against the euro to 85.94 from previous close of 85.85.