The rupee logged its steepest single-day drop in more than three months on Friday, breaching the 89-per-dollar mark for the first time amid weak sentiment across domestic and global equity markets. The currency fell 78 paise intraday to 89.46 against the US dollar. At the interbank foreign exchange market, the rupee opened at 88.67 before touching a record intraday low of 89.50. It later traded at 89.40 against the greenback. On Thursday, the domestic currency had closed at 88.68, down 20 paise. The previous record intraday low of 88.85 was hit on September 30, while the lowest closing level stood at 88.81 on October 14. The sharpest fall prior to Friday was recorded on July 30, when the rupee declined 89 paise in a single session, according to PTI. Global cues remained weak, with

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