The 30-share index, which had gained almost 171 points in the previous two sessions, fell by 19.49 points, or 0.11 per cent, to 17,708.71, with stocks of IT, metals and PSU sectors leading the fall.
Similarly, the wide-based National Stock Exchange index Nifty declined by 5.10 points, or 0.09 per cent, to 5,375.25.
Brokers said profit-booking by speculators as participants booked profits influenced the trading sentiment, however, a slightly better trend in Asian region capped the losses.
In the Asian region, Hong Kong's Hang Seng index was up by 0.27 per cent, while Japan's Nikkei Index gained 1.36 per cent in the morning trade today.
The US Dow Jones Industrial Average had ended 0.06 per cent lower in yesterday's trade.