Bangalore: Infosys Ltd 's chief executive officer (CEO) S.D. Shibulal has seen ups and downs since taking the helm of India's second largest software services company in August 2011. As Infosys struggled to keep pace with rivals such as Tata Consultancy Services Ltd and Cognizant Technology Solutions Corp., it was forced to bring back iconic founder-chairman N.R. Narayana Murthy as executive chairman in June to engineer a turnaround. In an interview after the company posted better-than-expected first quarter results on Friday, Shibulal, the last of the seven Infosys co-founders to become CEO, spoke about near-term challenges to the company's turnaround story, Narayana Murthy's comeback, his 3.0 strategy and the company's succession planning after he retires in 2015. Edited excerpts: