The name Vodafone is got from the term Voice data phone. Vodafone is the 3rd largest telecom service provider. Vodafone is in the third place on the basis of a total number of subscribers and a total revenue across the country. The company has its existence in almost 30 countries. Vodafone was started in the year 1984 on a partnership basis and became an independent concern in the year 1991. Vodafone entered India in 2007. It was the first company to introduce International roaming call facility. Its service and innovations have gained over 400 million subscribers. Vodafone is the third largest mobile communication company in a span of 30 years.