Besides, a weak trend on other Asian bourses and overnight losses at the US markets also dampened the trading sentiment here.
The 30-share index fell by 133.25 points or 0.49 per cent to 26,713.28 with IT, tech, consumer durables, auto and banking stocks leading the fall.
The gauge had lost 232.98 points in previous two sessions.
On similar lines, NSE Nifty edged lower by 18.50 points or 0.23 per cent to 8,113.20.
Shares of TCS, country's largest software services firm, dropped by 3.92 per cent to Rs 2,495.60 despite reporting a 16 per cent surge in net profit to Rs 6,084.66 crore for the quarter ended September 30.
The US Dow Jones ended 0.29 per cent lower in yesterday's trade.