Airtel

Headquarters -- New Delhi, India

Customer Base -- 194.8 million ( fifth largest in the world ) 147m India, 40m Africa, 7m Lanka and Bangladesh
Ownership -- Bharti Enterprises (63.56%) SingTel (32.04%) Vodafone (4.4%)
Business units - Mobile, Telemedia, Enterprise and Digital TV
Market share in India -- 29%
Revenue -- 35,699.27 crore (US$7.75 billion)(2009) 
Profit -- 9,426.16 crore (US$2.05 billion)(2009)
Global Presence -- 19 countries Asia = India, Bangladesh, Sri Lanka
Africa =   Burkina Faso, Chad, Democratic Republic of the Congo, Gabon, Ghana, Madagascar, Malawi, Niger, Congo, Seychelles, Tanzania, Uganda, Channel Islands
Acquisitions -- In 1999, JT Holdings, and extended cellular operations to Karnataka and Andhra Pradesh.         
In 2000, Skycell Communications, in Chennai.
In 2001, Spice Cell in Calcutta. 
In 2004, Hexacom and entered Rajasthan.
In 2005, Bharti extended its network to Andaman and Nicobar.
On 8, June 2010,bought Kuwait-based Zain Telecom's businesses in 15 African countries for $10.7 billion
On August 11, 2010, Bharti Airtel announced that it would acquire 100% stake in Telecom Seychelles for US$62 million taking its global presence to 19 countries

In 2009, Airtel launched its first international mobile network in Sri Lanka. In 2010, Airtel began operating in Bangladesh and 16 African countries.