Bharti Airtel is looking to buy a controlling stake in Bangladesh’s fourth-biggest mobile phone operator Warid Telecom, pressing ahead with its international ambitions just two months after it failed in its second attempt to merge with South Africa’s MTN. India’s largest phone company, by both revenues and subscribers, has applied to the Bangladesh Telecommunications Regulatory Commission (BTRC) for permission to buy a 70% stake from the Abu Dhabi group, the owner of Warid, the regulatory body’s chairman Zia Ahmed told news agencies in Dhaka. He declined to say how much the stake was worth, but added that Bharti Airtel “initially intended to invest $300 million.” […]