Bharti Airtel is restructuring its enterprise business division, Airtel Business, with CEO Ajay Chitkara stepping down. The division will be split into three categories, each with its own head: Vani Venkatesh will lead the global business, Ganesh Lakshminarayanan will oversee the domestic business and Ashish Arora will head up Nxtra Data Centers. The enterprise business division is the carrier?s third largest contributor to overall revenues after its mobile operations in India and Africa.