About Suresh Kumar
Walmart said it has appointed Suresh Kumar, an IIT Madras graduate and former Google executive, as chief technology officer and chief development officer. He holds a Bachelor of Technology from the Indian Institute of Technology, Madras, and a PhD in engineering from Princeton University.

Why he has been appointed?
His appointment comes as Walmart is undertaking major investments in its e-commerce business to compete more effectively with Amazon.

(Source:https://www.livemint.com/companies/news/iit-madras-alumni-an-ex-google-amazon-employee-appointed-new-cto-of-walmart-1559064770745.html)