Indian equity indices ended on a negative note with Nifty below 25,100 on January 23. At close, the Sensex was down 769.67 points or 0.94 percent at 81,537.70, and the Nifty was down 241.25 points or 0.95 percent at 25,048.65. About 1295 shares advanced, 2736 shares declined, and 139 shares unchanged.