Sensex opened with a huge gap up led by technology stocks that were celebrating Infosys' third quarter numbers. Infosys opened with a 12 percent gain. At 09.21 AM, the Sensex was up 149.05 points or 0.76% at 19812.60, and the Nifty up 32.60 points or 0.55% at 6001.25.
Top gainers on the Sensex were Infosys, Wipro (3.45 percent), TCS (3.35 percent). From the midcap space Hexaware Tech appreciated 3.60 percent. Metal stocks like Sterlite and Tata Steel were the other gainers on the BSE benchmark index.
It has been a remarkable turnaround for Infosys, which had been one of the poorest performers on the 50-share NSE benchmark Nifty. With conditions improving in the US, experts say the stock has shown sufficient symptoms to get re-rated. However, besides CNX IT (up 7 percent), rest all were trading flat.

Midcaps continue to bleed for the third consecutive day. Bajaj Holdings, Shobha Developer  Amtek Auto etc were trading with a loss ranging from 2 percent to 3.5 percent.