``The Sensex fell 425.4 points or 2.6% to 15,946.1 while the Nifty fell to 4,778.4, down by 127.4 points or 2.6%. The Sensex has supports at 15,800 and 15,650 and resistances at 16,170 and 16,300. The Nifty has supports at 4,750 and 4,720 and resistances at 4,800 and 4,840.``
Sensex has resistance at 16,170 & 16,300: