The rupee resumed lower at 54.65 per dollar as against the last weekend's level of 54.52 at the Interbank Foreign Exchange (Forex) Market. It hovered in a range of 54.64 and 54.79 per dollar before quoting 54.78 at 1040 hrs.
Persistent dollar demand from banks and importers in view of firm dollar in overseas market mainly affected the rupee value against, a forex dealer said.
In Los Angeles, the Australian dollar fell against the US dollar today after weaker-than-expected economic readings from China, Australia's largest trading partner.
New York's main contract, light sweet crude for delivery in May dropped 80 cents to USD 90.49 a barrel.
Meanwhile, the Indian benchmark BSE-30 share index, Sensex, declined by 32 points or 0.18 per cent quoting 18,210.35 at 1040 hrs.