Cognizant India Chairman Rajesh Nambiar has been appointed President of Digital Business and Technology (DB&T) of US-based company. Nambiar takes over from Malcolm Frank, who will retire from Cognizant with effect from September 1, 2021. Cognizant CEO Brian Humphries said, "Rajesh brings deep knowledge of applications, data, AI, analytics, infrastructure, cloud, and consulting to his new role."