The technological changes have made mobile phone services significantly useful throughout the world. At present, varieties of services are offered by mobile phone companies to their users daily. However, the satisfaction of the Investor on mobile phone services measures the success of the service providers. So, it is now one of the prior objectives of the mobile phone service providers to meet the expectations of their customers at the same time meet the current market requirements. Investor compares their perception of the quality of services and how they are satisfied overall with their experiences. Focussing on this fact, the present study has been made to analyse the satisfaction of users of Jio mobile phone services. An attempt has been made in this study in analysing the satisfaction level of customers towards Jio mobile phone services in Bhubaneswar city. The study focuses to identify the satisfaction level of users of the Jio mobile phone service. The primary source of data is collected with a sample size of 200.