Indian equity indices ended on a negative note with Nifty below 25,900 on December 16. At close, the Sensex was down 533.50 points or 0.63 percent at 84,679.86, and the Nifty was down 167.20 points or 0.64 percent at 25,860.10. About 1573 shares advanced, 2412 shares declined, and 154 shares unchanged.