At close, the Sensex was up 181.54 points or 0.40% at 45,608.51 for the fourth day and the Nifty was up 37.20 points or 0.28% at 13,393 lifted primarily by Reliance Industries and public sector banks. Top gainers on Sensex were UltraTech Cement, Bharti Airtel, and Larsen & Toubro. While losers include Sun Pharma, Axis Bank, and Tech Mahindra. About 1344 shares have advanced, 1374 shares declined, and 130 shares are unchanged. Nifty metal and pharma indices gained 1 per cent each, while PSU Bank index added over 7 per cent. BSE Midcap and Smallcap indices ended with marginal losses.