Tata DOCOMO offers mobile services in India . NTT DOCOMO has played a major role in the evolution of mobile telecommunications through its development of cutting-edge technologies and services. Over the years, technologists at DOCOMO have defined industry benchmarks like 3G technology, as also products and services like i-Mode, e-wallet and a plethora of lifestyle-enhancing applications. Last year itself, while most of the rest of the industry was only beginning to talk of 4G technology and its possible applications, DOCOMO was planning 4G tests. And Tata Teleservices is the pioneer of the CDMA 1x technology platform in India. At the moment, Tata Teleservices works in 400,000+ cities in India, offering a huge range of mobile services.