Snapping two days of gains, the Sensex at the Bombay Stock Exchange plunged 283 points, or 1.5 percent, today, on profit booking by investors and amid weak European markets. The Sensex had gained 95 points at the day's high, and lost 333 points at the day's low. The Nifty at the National Stock Exchange lost 102 points, or 1.8 percent, to 5,505. In the broader market, the BSE Midcap index plummeted 3.5 percent and the Smallcap index dropped 3.2 percent.The BSE clocked a turnover of 3,839 crore rupees on its cash segment. Market breadth was weak on the BSE, with three declining stocks for every single gainer.Sectorally, the Realty index was the leading loser, declining 6.8%. The Consumer Durables index dropped 4.9%; the Metal index lost 4.3%; the Bankex and the Power index fell about 3.8% each; the PSU index slid 2.7%; the Capital Goods index slipped 2.4%; the Auto index lost 1.6%; the Healthcare and the Oil and Gas indices shed 0.8% each and the FMCG index fell 0.6%. The IT index was the only gainer, rising 0.5%. Reliance Industries fell 1%, but ONGC edged up 0.1%. NTPC fell 1.8%, power equipment maker BHEL slumped 3.9%.Larsen & Toubro dropped 1.2%.In FMCG counter, Hindustan Unilever, Dabur and Nestle shed between 0.2% and 14%. But, ITC rose 1%.Bank majors ICICI Bank declined 2.6% and SBI plumeted 8%. HDFC Bank shed 0.2%.In metal counter, Jindal Steel & Power, JSW Steel, SAIL, Hindustan Zinc, Tata Steel, and Hindalco fell between 2.5% and 5%. Sterlite slumped 6.6% and Sesa Goa fell 4.2% on media reports that the Vedanta Resources group may merge iron ore firm Sesa Goa with copper and aluminium maker Sterlite Industries to simplify and consolidate its corporate structure.Among realty stocks DLF, HDIL and Unitech dropped between 7.6% and 8.3%.