The Sensex is now down 379 points at 13,420.SBI has tumbled 6.5% to Rs 1,266. ACC, ICICI Bank and HDFC Bank have shed nearly 6% each to Rs 1,039, Rs 825 and Rs 1,024, respectively.NTPC and Tata Steel have dropped around 4.5% each to Rs 145 and Rs 461, respectively.Reliance Communications, Reliance Energy and Bharti Airtel are down around 4% each to Rs 429, Rs 533 and Rs 609, respectively.Out of 2,567 stocks traded so far, 1,981 have declined, 544 have advanced and the rest are unchanged.Read Earlier Analysis: Selling interest opens up on bourses