At close, the Sensex was down 1,416.30 points or 2.61% at 52,792.23, and the Nifty was down 430.90 points or 2.65% at 15,809.40. About 838 shares have advanced, 2413 shares declined, and 122 shares are unchanged.
Wipro, HCL Technologies, TCS, Tech Mahindra and Infosys were among the top Nifty losers, while gainers included ITC, Dr Reddy's Laboratories and Power Grid Corporation.