The 30-share index, which had gained 110.61 points yesterday, fell by 32.56 points, or 0.18 per cent, to 17,174.73, with stocks of IT, capital goods, auto and realty sectors succumbing to profit-booking.
Similarly, the wide-based National Stock Exchange index Nifty shed 11.20 points, or 0.21 per cent, to 5,211.45.
Brokers said profit-booking by speculators after yesterday's gains led to the fall in select stock prices here.
In addition, a cautious approach adopted by participants ahead of tomorrow's monthly expiry in the derivatives segments also influenced the trading sentiment, they added.
