Nilanjan Roy spent 13 years with Bharti Airtel, prior to which he worked for 15 years with Unilever across their global operations.
Sanghrajka has spent 13 years in Infosys over two stints and has performed various leadership roles in the finance section.
Ranganath has held several leadership positions.
Over the past few months, Infosys has been battling allegations by Murthy and other former senior executives of falling corporate governance standards.
"There was not a single decision that I took during my second tenure without discussing it with Ranga and getting valuable input from him," says Narayana Murthy.
'The big thing is on the works on Zero Distance, the initiative to bring innovations in every project.'