The 30-share index, which has gained nearly 703 points in the previous four sessions, fell by 145.82 points or 0.72 percent to 19,221.77 with all the sectoral indices led by consumer durables, banking and realty coming under pressure.
In a similar fashion, the wide-based National Stock Exchange index Nifty fell by 53.35 points, or 0.93 percent, to 5,688.95.
Brokers said that besides profit-booking by participants after four sessions of gains and a mixed trend on the Asian bourses in line with overnight losses in the US markets, led to the decline in the benchmark Sensex.
In the Asian region, Japan's Nikkei Index was down by 0.40 percent, while Hong Kong's Hang Seng index up by 0.41 percent in the morning trade on Friday.
The US Dow Jones Industrial Average ended 1.47 percent lower on Thursday.


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