TCS, Infosys shares gain after Cognizant retains guidance

IT stocks outperformed all other groups of stocks on the BSE Tuesday tracking strong gains in Cognizant Technology Solutions, which surprised the Street with a strong performance in the June quarter.Cognizant's shares rose as much as 13 percent to $65.48 on Monday on the Nasdaq.The New Jersey-based company, most of whose employees are in India, stood by its full-year revenue forecast at a time when its Indian peers have been painting...