The 30-share barometer, which had gained 138.78 points in the previous session, fell by 118.09 points, or 0.44 per cent, to 26,513.20.
On similar lines, the broad-based National Stock Exchange index Nifty declined by 24.40 points, or 0.31 per cent, to 7,951.10.
Brokers said profit-booking by participants after yesterday's gains amid mixed trend on other Asian bourses following overnight gains on the US market after Federal Reserve stuck to its easy-money policy influenced sentiments here.
However, the US Dow Jones Industrial Average ended at fresh record high by rising 0.15 per cent higher in yesterday's trade.