The BSE Sensex extended losses in the afternoon, plunging over 428 points on sustained bouts of selling in realty, auto, banks, finance, telecom, industrials and healthcare stocks amid rising crude prices and weak Asian cues.


The 30-share index is now trading lower at 36,413 showing at 1 pm. The broader Nifty 50 index was trading at 11,007.


Major losers were M&M, Maruti, HDFC, HDFC Bank, ICICI Bank, ITC, Tata Steel, IndusInd Bank and Kotak Bank, falling up to 6 per cent.


Gainers include TCS, Infosys, Coal India, Vedanta and ONGC, rising up to 3.48 per cent. Meanwhile, foreign portfolio investors (FPIs) bought shares worth a net of Rs 760.70 crore, while domestic institutional investors (DIIs) also bought equities to the tune of Rs 497.03 crore last Friday, provisional data showed.