The Nifty IT index surged over 2 percent, with Coforge and Persistent Systems leading the gains among its 10 components. Coforge shares soared 10 percent, while Persistent Systems jumped 10 percent after reporting robust financial performance for the December quarter. Excluding HCLTech, which dipped by 0.5 percent, the remaining nine constituents of the IT index rose by 0.5-11 percent.