The Sensex opened 30 points higher at 11,677. The index slipped into red to a low of 11,635, but soon bounced back into the positive zone. Unabated buying in the market led the index rally to higher levels saw the day progressed.The index touched a high of 11,965 - up 330 points from the day's low. The Sensex finally ended with a huge gain of 2.5% (292 points) at 11,939.The BSE Metal index soared 4% to 10,486. The Auto and Oil & Gas indices gained 3% each at 5,499 and 5,645, respectively. The FMCG index surged 2.5% to 2,284, and the IT index advanced 2% to 4,092.Maruti zoomed 6.5% to Rs 923. Tata Motors has rallied 4.5% to Rs 958, and Bajaj Auto gained over 4% to Rs 2,953. Hero Honda was up 2.6% at Rs 847.Tata Steel surged 5% to Rs 654. Hindalco moved up over 4% to Rs 214.Cipla soared 6% to Rs 263. While Dr.Reddy's added 1.5% to Rs 1,456, Ranbaxy declined 1% to Rs 476.ONGC flared up 4.8% to Rs 1,387. Reliance added 2.6% to Rs 978.Wipro zoomed 4.3% to Rs 549. Infosys gained 2.6% at Rs 3,228, and Satyam advanced 2% to Rs 777. TCS, too, finished with a gain at Rs 1,942.ACC surged nearly 5% to Rs 968. Grasim rallied 3.4% to Rs 2,377, and Gujarat Ambuja spurted 1% to Rs 118.HDFC advanced 3.3% to Rs 1,297. While HDFC Bank advanced 1.5% to Rs 838, ICICI Bank and SBI moved up 1% each to Rs 567 and Rs 910, respectively.