Benchmark indices Sensex and Nifty significantly fell from their highs to trade in deep red (up to 1.3% lower) on October 23 due to various reasons, including FII selling and rising crude prices. At 12:53 am, the Sensex was down 741.31 points or 1.01% at 72,508.08, and the Nifty was down 293.40 points or 1.29% at 22,394.25. About 483 shares advanced, 3,461 shares declined, and 129 shares were unchanged.