The 30-share index slipped below the 27,000 mark by falling 302.48 points, or 1.10 per cent, to 26,948.62. The gauge had gained 373.62 points in the previous session.
In a similar fashion, the NSE index Nifty dipped below the 8,200-mark by losing 98.15 points, or 1.19 per cent, to 8,137.30.
Brokers said profit-booking by participants in stocks that recorded handsome gains in yesterday's trade and a mixed trend at other Asian markets tracking overnight losses at US markets following a disappointing retail sales report dampened sentiment.
The US Dow Jones Industrial Average ended 0.04 per cent lower in yesterday's trade.