Walmart-owned online retailer Flipkart's Chief Financial Officer (CFO) Sriram Venkataraman has been given additional charge as the company's Chief Operating Officer (COO). The position remained vacant since previous COO Nitin Seth resigned in mid-2017. Venkataraman, an IIT-ISB alumnus, will head the logistics vertical Ekart, the marketplace, and the retail vertical, as part of his additional role.