Telecom major Bharti Airtel is the fourth largest mobile operator in the world with over 250 million connnections globally, according to analyst firm Wireless Intelligence. China Mobile continues to be at the top spot with 683.08 million connections, followed by Vodafone Group (386.88 million) and America Movil Group (251.83 million). Bharti Airtel (250.04) and Telefonica…