Bharti Airtel raises voice call tariffs Bharti Airtel, India's top mobile phone carrier, said on January 23 that it has raised voice call prices to account for rising costs, sending its shares up more than 3 per cent. ...  
11:51 AM, Jan 23, 2013

Hiked SMS, call charges not acceptable to ministers Customers may now be able to change provider without changing the no. ...  
08:33 PM, Aug 22, 2007