Bharti Airtel raises call charges under some prepaid schemes
Bharti Airtel Ltd. Friday raised call charges under some of its prepaid schemes, as India's largest mobile-phone company by subscribers moved to plug eroding profit margin after two years of intense price wars.
Telecommunications service provider Bharti Airtel launched prepaid and postpaid 4G services in Chandigarh, Mohali and Panchkula in Punjab.