Snapping two days of gains, the Sensex at the Bombay Stock Exchange fell 101 points, or 0.6 per cent, to 16,328, on profit-booking, today. The Nifty at the National Stock Exchange declined 26 points, or 0.5 per cent, to 4,888. Stock markets in Hong Kong, South Korea and Singapore fell between 0.5 per cent and 1 per cent.