At close, the Sensex was down 152.18 points or 0.29% at 52,541.39, and the Nifty was down 39.90 points or 0.25% at 15,692.20. About 1730 shares have advanced, 1484 shares declined, and 143 shares are unchanged. Tata Steel, ONGC, NTPC, Infosys and Wipro were among the top Nifty losers, while gainers were Bajaj Finserv, Bajaj Finance, Tata Motors, Hero MotoCorp and Grasim Industries.