While cement and pharma stocks have attracted buying in the opening bell, weakness in banking, tech and other select counters has seen the Sensex drop 10 points to 6,525. The Nifty, too, has lost ground in early trades to 2,057 - down five points over its last close.ONGC has shed 1.29% (Rs 11) to Rs 883.SBI has declined a per cent (Rs 5) to Rs 688. While HDFC Bank has lost 1.38% (Rs 8) to Rs 543, ICICI Bank is down Rs 3 at Rs 392.Infosys and Satyam have lost a per cent each to Rs 2,210 (down Rs 8) and Rs 395 (down Rs 4), respectively. Wipro is trading lower by Rs 2 at Rs 672.Reliance is up a notch at Rs 544. While ITC has clocked a per cent gain (Rs 11) to Rs 1,285, HLL is up a rupee at Rs 131.Ranbaxy has added 1.10% (Rs 12) to Rs 1,081. Dr. Reddy's and Cipla are up a per cent each at Rs 736 and Rs 267, respectively.Grasim, Gujarat Ambuja and ACC, too, have commenced in the green at Rs 1,255 (up Rs 10), Rs 413 (up Rs 3) and Rs 360 (up Rs 2), respectively.