Government of India implemented the unified access licensing regime, which enables basic and cellular mobile service to use any modern technology. In 1997, Telecom Regulatory Authority of India (TRAI) was formed to facilitate the growth of the telecom sector in India.
Telecommunication sector in India is primarily subdivided into two segments, which are Fixed Service Provider (FSPs) and Cellular Services. Telecom industry in India constitutes some essential telecom services like telephone, radio, television and Internet. Telecom industry in India is specifically emphasizing on latest technologies like GSM( Global System for Mobile Communications), CDMA(Code Division Multiple Access), PMRTS(Public Mobile Radio Trunking Services), Fixed Line and WLL(Wireless Local Loop ). India has a prospering market specifically in GSM mobile service and the number of subscribers is growing very fast.