Indian equity indices ended on a weak note with Nifty at 25,050 on September 24. At close, the Sensex was down 386.47 points or 0.47 percent at 81,715.63, and the Nifty was down 112.60 points or 0.45 percent at 25,056.90. About 1535 shares advanced, 2445 shares declined, and 143 shares unchanged.