Indian IT's 'Big Four' are out with their numbers. Experts, Saugata Bhattacharya, senior VP of business and economic research at Axis Bank; Som Mittal, president of NASSCOM; Arup Roy, principal analyst at Gartner; TV Mohandas Pai, chairman of Manipal Global Education Services, and Siddharth Pai, president of Asia Pacific region at Information Services Group, discuss some of the trends emerging from the earnings reports, what is the road ahead for the sector and whether it is time for Indian IT to reinvent itself.