This study tested a conceptual model of the influence of psychological capital on employee engagement and explored the mediating effects of mediating role of organizational commitment. The hypothesized relationships were investigated using structural equation modelling. The results also show the positive significant relationship between psychological capital and employee engagement, psychological capital and organizational commitment and also between organizational commitment and employee engagement. Theoretical and operational effects of these results are addressed in this paper. The data for the study were collected using an online questionnaire survey with a sample of 153 employees working in UVJ Technologies, CSEZ, Kakkanad.