sentences:  On 8 June 2010, Bharti Airtel completed the purchase of mobile operations in 15 African countries from Zain, a Kuwaiti operator.On 11 August 2010, Bharti Airtel announced that it would acquire Telecom Seychelles for US$62 million.On 15 August 2017, Bharti Airtel and Milicom's Tigo in Ghana merge to form new company AirtelTigo.