The 30-share index declined by 20.59 points, or 0.09 percent, to 21,805.83 with metals, auto, PSUs, banking and oil & gas sectoral indices leading the fall.
The index had lost 108.41 points in the previous session.The National Stock Exchange Nifty moved down by 5.65 points, or 0.09 percent, to 6,506.25.
Brokers said besides profit-booking by speculators after the recent rally, a cautious approach adopted by funds ahead of industrial production (IIP) data for January to be released later in the day, contributed to the decline. Besides, a weakening trend in the global markets dampened the trading sentiments here, they said.
Among other Asian markets, Hong Kong's Hang Seng was down 1.13 percent while Japan's Nikkei fell 2.17 percent in early trade today.The US Dow Jones Industrial Average ended 0.41 percent lower on profit-booking in yesterday's trade.