Introduction Bharti Airtel Limited, commonly known as Airtel, is an Indian telecommunications company ranked among the six best performing technology companies in the world by Business Week. It operates a GSM network in all countries, providing 2G or 3G services depending upon the country of operation. Airtel is the fifth largest telecom operator in the world with over 242 million customers across 19 countries It is the largest cellular service provider in India, with over 200 million subscribers across its operations. Airtel is the third largest in-country mobile operator by subscriber base, behind China Mobile and China Unicom. In 1995, Sunil Mittal incorporated the cellular operations as Bharti TeleVentures and launched service in Delhi. Today, Airtel is the largest cellular service provider in India. Airtel launched its first international mobile network in Sri Lanka. In 2009, Airtel began operating end. History Sunil Bharti Mittal founded the Bharti Group. In 1983, Sunil Mittal was into an agreement with Germany's Siemens to manufacture the company's push-button telephone models for the Indian market. In 1986, Sunil Bharti Mittal incorporated Bharti Telecom Limited (BTL) and his company became the first in India to offer push-button telephones, establishing the basis of Bharti Enterprises. This firstmover advantage allowed Sunil Mittal to expand his manufacturing capacity elsewhere in the telecommunications market. By the early 1990s, Sunil Mittal had also launched the country's first fax machines and its first cordless telephones. In 1992, Sunil Mittal won a bid to build a cellular phone network in Delhi. In 1995, Sunil Mittal incorporated the cellular operations as Bharti Tele-Ventures and launched service in Delhi. In 1996, cellular service was extended to Himachal Pradesh. In 1999, Bharti Enterprises acquired control of JT Holdings, and extended cellular operations to Karnataka and Andhra Pradesh. In 2000, Bharti acquired control of Skycell Communications,…