The Sensex opened with a positive gap of 28 points at 6,471. After crossing the 6,500-mark in early trades, the index moved in a range of 6,510-6,515 till early noon trades. Strong buying interest in late noon trades lifted the index to an intra-day high of 6,555. Profit-taking in select counters saw the Sensex pare some gains towards the fag-end, and finally end the session at 6,511 - up 68 points. The Nifty, too, came off highs to end 13 points higher at 2,028.While 20 Sensex stocks advanced, 10 declined today. Advancing shares accounted for a volume of 1.04 crore amounting to Rs 548.45 crore, and declining shares registered a volume of 12 lakh for Rs 71.84 crore.ONGC gained 1.19% (Rs 10) to Rs 861. While Reliance clocked 1.24% gains (Rs 7) to Rs 567, HLL ended marginally higher at Rs 135. ITC, however, ended a rupee lower at Rs 1,319.Infosys shed some gains on profit-taking to end 1.47% higher (Rs 32) at Rs 2,191. While Satyam advanced 2.82% (Rs 11) to Rs 399, Wipro slipped into the red to close at Rs 644 - down Rs 2.HDFC Bank rose 3% (Rs 16) to Rs 535. While ICICI Bank added nearly 2% (Rs 8) to Rs 398, SBI was up a tad at Rs 666.Zee jumped 3% (Rs 4) to Rs 134. HDFC at Rs 709 (up Rs 18 or 2.67%), L&T at Rs 1,010 (up Rs 36 or 3.71%), Tata Power at Rs 351 (up Rs 10 or 3%) and Tisco at Rs 418 (up Rs 5 or 1.28%) ended on a firm note.Dr. Reddy's shot up 2.83% (Rs 21) to Rs 772. While Ranbaxy notched up 1.68% gains (Rs 18) to Rs 1,072, Cipla added 1.58% (Rs 4) to Rs 258.Maruti logged 2.12% gains (Rs 9) to Rs 421, and Tata Motors was up a rupee at Rs 417. Bajaj, however, remained weak and lost a per cent (Rs 11) to close at Rs 1,105. Hero Honda was down a rupee at Rs 541.Gujarat Ambuja (up Rs 6 or 1.46% to Rs 410) ended with steady gains. While Grasim lost 1.17% (Rs 14) to Rs 1,213, ACC was down a notch at Rs 359.While all the sectoral indices closed with gains, the BSE FMCG index was down marginally to 1,049 points today.Out of 2,423 scrips traded, 1,289 advanced, 1,065 declined and 69 were unchanged today.Jindal Vijaynagar Steel topped the volume chart with over 60 lakh shares followed by Ispat Industries (55.62 lakh shares) and IFCI (54.45 lakh shares).Jindal Vijaynagar was also the top traded stock with a turnover of Rs 224 crore followed by Reliance (Rs 102 crore) and SBI (Rs 89.90 crore).