The Sensex is now up 499 points at 10,044.Satyam has zoomed 11% to Rs 684. Tata Steel has soared 10.5% to Rs 457.TCS has surged 8.7% to Rs 1,690. Hindalco has gained 7.8% at Rs 164.Dr.Reddy's and Reliance Communication Ventures have moved up 7.5% each to Rs 1,308 and Rs 230, respectively.The market breadth continues to remain extremely positive - out of 2,359 stocks traded so far, 1,968 have advanced, 349 have declined and the rest are unchanged.Infosys leads the value chart with a turnover of Rs 65.54 crore followed by Reliance (Rs 61.65 crore), Tata Steel (Rs 39 crore), Reliance Capital (Rs 36.70 crore) and Larsen & Toubro (Rs 32.51 crore).G V Films tops the volume chart with trades of around 41.30 lakh shares followed by Gitanjali Gems (24 lakh), Reliance Communication Ventures (22.18 lakh), ITC (21.43 lakh) and Essar Oil (21.40 lakh).