The immigration services are an important part of the mandate of organizations that could help a country to gain competitive advantage. If these services are properly addressed, then the competitive advantage could be decreased especially in those countries where individuals from diverse religious backgrounds are living, especially in China and Indonesia. To address this issue, there are several factors that could potentially enhance immigration services. Among those factors, the role of ethical practices is considered particularly consequential for improving immigration service delivery. Therefore, the current study objective is to analyse the ethical practices of immigration officials with a view to improving the professionalism of immigration services delivery. For this purpose, data has been collected from 400 professionals. The design of the research is based on a cross sectional and quantitative research approach. The Structural Equation Modeling (SEM) effects show that all ethical practice dimensions have a significant relationship with immigration service delivery. Based on these findings, this study contributes significantly to existing literature and can provide help to regulators to know about the importance of ethical values in terms of increasing their services. Limitations of the current research and future directions are also discussed at the end of the study.