The rupee recorded its biggest slump in two months by plunging 57 paise to end at 55.07 on massive demand of the US currency from oil firms.
At the interbank foreign exchange market, the rupee commenced lower at 54.82 a dollar from the previous close of 54.50 and immediately touched a high of 54.76. However, it started falling soon and logged an intra-day low of 55.17.