At close, the Sensex was down 627.43 points or 1.25% at 49,509.15, and the Nifty was down 154.40 points or 1.04% at 14,690.70. HDFC Bank, HDFC, Power Grid, Tech Mahindra, ONGC, ICICI Bank, Infosys, and Bajaj Finance were the top losers in the Sensex pack. While Bajaj Finserv, ITC, SBI, HUL, Tata Motors, UPL, and Grasim were top gainers in the Sensex pack. About 1362 shares have advanced, 1470 shares declined, and 190 shares are unchanged. Among sectors, IT, bank, energy and infra sectors fell 0.4-1.7 per cent, while the PSU Bank index added over a per cent. The S&P BSE MidCap index ended 0.07 per cent higher while the S&P BSE SmallCap index advanced 0.52 per cent.