(Reuters) - The world's largest retailer Wal-Mart Stores Inc
Khasis, who joined Wal-Mart in 2011 as senior vice-president, will focus on developing new store concepts that can be deployed across markets, Wal-Mart spokesperson Kevin Gardner said in an e-mail statement.
Khasis built up Russia's biggest food retailer X5
Wal-Mart has more than 4,480 stores in the United States, including large supercenters, discount stores, grocery stores, small format stores and Sam's Club warehouse club stores.
(Reporting by Mridhula Raghavan in Bangalore; Editing by Michael Perry)