Indian main stock index Sensex slumped 1.32 percent or 224.15 points in the early session of Friday dragged by sharp drops in bourses across the world Indian stocks opened at 19,939.58 points on Friday, 47.95 points lower from previous close of 16,987.53. All of the sectors saw losses headed by metal, realty, banking and auto sectors, down 2.52 percent, 2.03 percent, 1.64 percent and 1.46 percent, respectively. Indian aluminum maker Hindalco, industry house Jaiprakash Associates, copper producer Sterlite Industries, Tata Steel and housing developer DLF saw losses of 2.74 percent, 2.73 percent, 2. 7 percent, 2.44 percent and 1.98 percent, respectively, after 21 minutes of trading. Sensex is the common name for the Bombay Stock Exchange Sensitive Index. It consists of the 30 largest and most actively traded stocks, representative of various sectors, on the Bombay Stock Exchange. 