Bharti Airtel Limited or better known as Airtel is one of the leading telecommunications company in the world, spread across over 20 countries in Asia and Africa. Airtel became a public limited company in July 1995. Having the maximum number of subscribers globally, the company offers wireless services including 2G, 3G and 4G, fixed lines, broadband, IPTV and DTH services as well. Known for their innovative and quick services, Airtel has its headquarters in New Delhi, India. From their website www.airtel.in, they offer airtel online recharge for pre-paid mobile and DTH services, as well as airtel bill payment for other post-paid services.