The wider NSE Nifty50 also lost over 100 points during the intra-day trade. Among the sectors heavy selling pressure was witnessed in banking consumer durables and auto stocks.
Globally market sentiments were subdued on reports that the US might announce fresh tariffs on Chinese imports.
At 12.50 p.m. the Nifty50 on the National Stock Exchange traded at 11 410.00 points lower by 105.20 points or 0.91 per cent from the previous close.
The BSE Sensex which had opened at 38 027.81 points traded at 37 680.58 points lower by 410.06 points or 1.08 per cent from the previous close of 38 090.64 points.
So far it has touched an intra-day high of 38 027.81 points and a low of 37 597.05 points.
The top gainers on the Sensex were Tata Steel Wipro IndusInd Bank Power Grid and Bharti Airtel while the major losers were HDFC NTPC State Bank of India HDFC Bank and Tata Motors (DVR).
--IANS rrb/ksk/vm