The 30-share barometer fell by 54.00 points, or 0.27 per cent, to 19,904.47, led by losses in stocks of capital goods, realty and power sectors. The index had gained nearly 665 points in the previous two sessions.
Similarly, the wide-based National Stock Exchange index Nifty shed 22.85 points, or 0.38 per cent, to 5,986.15.
Brokers said besides profit-booking by speculators after recent gains, disappointing industrial production for May and retail inflation data for June, which were announced after trading hours on Friday, mainly dampened the trading sentiments here.