Indian benchmark indices ended lower in the volatile session on January 14 with Nifty below 25700. At close, the Sensex was down 244.98 points or 0.29 percent at 83,382.71, and the Nifty was down 66.70 points or 0.26 percent at 25,665.60. About 1887 shares advanced, 1918 shares declined, and 150 shares unchanged.