Stock market benchmark indices Sensex and Nifty extended their losses on Monday, as surging crude oil prices and a weak trend in global equities weighed heavily on investor sentiment.

Persistent foreign fund outflows further added to market nervousness, keeping investors on edge.

At 11:30 hours, the 30-share benchmark index was trading at 77262.37 down by -1656.53 points or by -2.1 % and then NSE Nifty was at 23834.05 down by -616.4 points or by -2.52 %.

Sensex touched intraday high of 77333.85 and intraday low of 76424.55 The NSE Nifty touched intraday high of 23959.7 and intraday low of 23697.8

The top gainers of the BSE Sensex pack were HCL Technologies Ltd. (Rs. 1370.00,+0.97%), Mahindra & Mahindra Ltd. (Rs. 1333.25,+0.09%), among others.

The top losers of the BSE Sensex pack were State Bank of India (Rs. 1083.60,-5.24%), Maruti Suzuki India Ltd. (Rs. 13460.00,-4.87%), Mahindra & Mahindra Ltd. (Rs. 3176.30,-4.72%), UltraTech Cement Ltd. (Rs. 11422.35,-4.71%), InterGlobe Aviation Ltd. (Rs. 4203.80,-4.56%), among others.

IT index was at 29216.06 up by -3.3 points or by -0.01%. R Systems International Ltd. (Rs. 285.00,+10.44%), Sonata Software Ltd. (Rs. 257.70,+4.46%), Happiest Minds Technologies Ltd. (Rs. 342.95,+1.74%), Affle 3I Ltd. (Rs. 1372.65,+1.56%), Persistent Systems Ltd. (Rs. 4847.30,+1.49%),.

Auto index was at 57316.11 down by -2513.75 points or by -4.2%. UNO Minda Ltd. (Rs. 1054.95,-5.94%), Bharat Forge Ltd. (Rs. 1824.00,-5.18%), Tata Motors Passenger Vehicles Ltd. (Rs. 333.50,-4.90%), Maruti Suzuki India Ltd. (Rs. 13460.00,-4.87%), Mahindra & Mahindra Ltd. (Rs. 3176.30,-4.72%),.

The Market breadth, indicating the overall strength of the market, was weak. On BSE out of total shares traded 4422 , shares advanced were 793 while 3432 shares declined and 197 were unchanged.