The objective of the study is to examine the role of Knowledge management as a mediator in the relationship between Spiritual intelligence and Employee engagement among the executives working in Information services industry. The study was conducted at Kerala state, among the employees working in IT and ITeS companies, having offices and sites at Trichur, Calicut, Cochin and Trivandrum. Samples were drawn using systematic random sampling from the NASSCOM registered companies. It is hypothesised that Knowledge management do not mediate the relationship between Spiritual intelligence and Employee engagement, and further a model is proposed. In order to test the hypothesis and model fitness, the scores of respondents are subjected to path analysis as well as structural equation modelling. To test the model, absolute fit and parsimonious fit indices were calculated. The data collected, fit the proposed model. The study indicates that Knowledge management is in a mediating relationship between Spiritual intelligence and Employee engagement. Further, it is observed that there is a negative direct relationship between Spiritual intelligence and Employee engagement. It is noticed that the type of mediation is complete mediation, since the direct negative effect of Spiritual intelligence on Employee engagement is no longer significant after the entry of the mediating variable Knowledge management. Thus, Spiritual intelligence has an indirect effect on Employee engagement through the mediating variable Knowledge management. Keywords: Employee Engagement, Knowledge Management, Mediation, Spiritual Intelligence.