China's manufacturing activity decelerated this month also affected the market sentiment. (Agencies)
The Sensex resumed lower at 20,579.26 and fell further to 20,369.07 before quoting at 20,395.26 at 1030 hours, showing a loss of 239.87 points, 1.16 percent from its last close.
The NSE 50-share Nifty also tumbled by 72.60 points or 1.19 percent to 6,050.30 at 1030 hours. Major losers were Sun Pharma (2.15 pct), ITC (1.82 pct), Icici Bank (1.79 pct), HDFC (1.76 pct), SSLT (1.58 pct) and Tata Steel (1.36 pct).
Asian stocks fell in their early trade as key benchmark indices in Taiwan, Hong Kong, China, Singapore, Indonesia and South Korea fell by 0.43 pct to 1.2 pct, while Japan's Nikkei 225 index rose 1.27 pct.
Meanwhile, foreign institutional investors (FIIs) bought shares worth a net Rs 80.40 crore on Wednesday as per provisional data from the stock exchanges.
China's manufacturing activity decelerated this month also affected the market sentiment.