One of the main objectives of TRCSL is to ensure the provision of a reliable and efficient national and international telecommunication service in Sri Lanka. For this purpose regulatory measures need to be taken to ensure that telecommunication service providers are compliant with their regulatory obligations to provide a reliable, efficient and quality telecommunications service. This necessitates continuous surveillance of the industry and enforcement of appropriate regulatory measures. These responsibilities were carried out by the Surveillance Unit of the Compliance Division of TRCSL.