The Sensex opened with a negative gap of 22 points at 6,629. It has now dropped 33 points to 6,618.Infosys has declined Rs 23 to Rs 2,065. Wipro has lost Rs 7 to Rs 742.Satyam has also opened on a weak note.Reliance has dropped Rs 4 to Rs 527. SBI has slipped a rupee to Rs 649. ITC has declined Rs 7 to Rs 1,307. HLL is up a rupee at Rs 147. Gujarat Ambuja has advanced Rs 4 to Rs 430. ACC is up a notch at Rs 352. Graim is up Rs 6 at Rs 1,346.HDFC and L&T have opened with gains.