Heavy selling is seen across sectors with Consumer Durables and realty indices leading the fall, down around 7% each.
The Sensex has touched a low of 13,219 and is now 13,281, down 223 points.
Jaiprakash Associates and Mahindra & Mahindra have tumbled over 6% each to Rs 174 and Rs 650, respectively.
DLF, Hindalco and Tata Power slumped over 5% each to Rs 263, Rs 69 and Rs 1,012, respectively.
Maruti, Tata Steel, Tata Motors and Reliance Infrastructure are down over 4.5% each.
Sun Pharma remains however remains firm and is now up 2.5% at Rs 1,148.
The market breadth is extremely - out of 2,352 shares traded, 1,938 have declined and 363 have advanced so far on the BSE.