INTRODUCTION
The last decade in the global arena has witness a tremendous growth in the area of
information technology. Rapid advances in the technologies for communication media like
television, computer, internet, printing and publishing has enabled us to get prompt access to
required information. Information technology (IT) has become one of the most robust
industries in the world. It, more than any other industry or economic facet, has increased
productivity, particularly in the developed world, and therefore is a key driver of global
economic growth. The IT sector has emerged as a major global source of both growth and
employment.