The US currency's increasing appeal among importers and banks led to foreign capital outflows.
According to traders, the dollar's strength against some currencies overseas on Fed's plan to stick to hiking rates pushed down the rupee.
A higher opening in the domestic equity market salvaged the situation for the rupee to an extent though, they said.
Yesterday, the rupee had ended flat at 64.43 against the US currency in a fairly range-bound trade.
Disclaimer: No Business Standard Journalist was involved in creation of this content