The Sensex at the Bombay Stock Exchange gained a marginal 11 points, or 0.1 percent, to 16,176, today, amid investor caution ahead of the beginning of the corporate earnings season.The Sensex had lost 37 points at the day's low, and added 80 points at the day's high. The Nifty at the National Stock Exchange also rose 11 points, or 0.2 percent, to 4,861. In the broader market, the BSE Midcap index rose 1 per cent, and the Smallcap index gained 1.3 percent. Market breadth was strong on the BSE, with about 2 gainers for every single loser. Turnover on The BSE's cash segment amounted to Rs 2,611 crore.Index heavyweight Reliance Industries climbed 1.5%.Among the 30 Sensex stocks, M&M, Bharti Airtel and Cipla lost between 1.3% and 1.8%.Organised retailers surged after the government notified an order allowing 100% FDI in single-brand retail. So Pantaloon Retail, Shoppers Stop, Trent, Provogue India, Brandhouse Retail, Store One Retail and Koutons Retail gained between 1.5% and almost 10%.Metal stocks rose on hopes of monetary policy easing in China. NMDC, JSW Steel, SAIL, Tata Steel, Hindalco, Hindustan Zinc, and Sterlite rose between 0.5% and 5.5%.Realty stocks gained. DLF, Indiabulls Real Estate, Sunteck Realty and HDIL added between 3% and 13%.Banking stocks also rose. ICICI Bank rose 0.6%, SBI added 1.3% and HDFC Bank gained 0.6%.IndusInd Bank spurted 4.5%, after strong Q3 results, with its quarterly net profit jumping 33.8%.But IT stocks fell as rupee rose. Infosys fell 1.3%, Wipro declined 0.5%, and TCS plunged 2.5%.