Reuters Market eye - The rupee is closing in on record low as equities remain weak and USD strengthens against crosses. The Indian unit falls to 58.6425, versus 57.87/88 at Monday's local close.
Dealers say USD supply has dried, pushing pair up, which was largely helped by a large private corporate selling.
Dealers cite some defence-related USD buying also by state-run banks.
Local stocks down 0.43 percent.
RBI intervention watched as pair nears record high of 58.98 seen last week.
(Reporting by Subhadip Sircar)