Bangalore, July 11 (ANI): India's second largest IT services provider Infosys posted on Friday a higher-than-expected quarterly net profit growth of 21.6 percent, retaining its revenue guidance of seven to nine percent for the fiscal year 2015. Shibulal, the last of Infosys' seven founders to hold the role of CEO and who is leaving at the end of this month, said the company had already taken several measures to retain staff, including quarterly promotions.