The Bombay Stock Exchange benchmark index Sensex fell by over 140 points, or 0.80 per cent, in opening trade on Monday on profit booking and a weak trend on other Asian bourses.
The 30-share index, which had gained nearly 179 points in the previous two sessions, was down 140.87 points, or 0.80 per cent, to 17,417.84 points in opening trade.
Stocks of information technology, metal and oil and gas sectors were under pressure, which pulled the Sensex down.
The wide-based National Stock Exchange index Nifty also declined by 46.55 points, or 0.88 per cent, to 5,231.45.
Marketmen said profit booking by funds and retail investors and a weak trend in other Asian markets, which were down up to 1.46 per cent in today's morning trade, pulled the benchmark Sensex down.
Among major losers were Infosys Technologies, which fell by 1.22 per cent to Rs 2,702.65, Wipro by 1.68 per cent to Rs 662.20, Tata Consultancy by 0.94 per cent to Rs 758.80, Sterlite Industries by 1.23 per cent to Rs 818.25, Tata Steel by 0.58 per cent to Rs 615.20, Reliance Industries by 0.75 per cent to Rs 1,024.80 and State Bank of India by 0.68 per cent to Rs 2,282.40.