The Sensex is now up 55 points at 10,126.The index had touched a high of 10,342 - up 331 points from the day's low of 10,011 - in early trades this morning.HDFC has gained 4.5% at Rs 1,162. Maruti has surged nearly 4% to Rs 708, and ONGC has added nearly 3% to Rs 1,107.Hindalco and HDFC Bank have advanced over 2% each to Rs 170 and Rs 755, respectively.Reliance Energy has dropped nearly 3% to Rs 455, and Tata Power has slipped 2.5% to Rs 473.Dr.Reddy's is down nearly 2% at Rs 1,300. Cipla and Larsen & Toubro have declined around 1.5% each at Rs 216 and Rs 2,148, respectively. Out of 2,175 stocks traded so far, 1,870 have declined, 264 have advanced and the rest are unchanged.