Project success is extremely important for companies dealing with different projects. Technical knowledge and leadership qualities are the two aspects that have remained unexplored with their combined effect on project success. The present research work aims to study the relation of technical knowledge and leadership qualities with project success on individual and combined basis. For this purpose, 1000 pre-designed questionnaires were distributed among project managers of various ERP implementation companies of UAE. With response rate of 27.9 %, only 279 forms were collected back. The statistical analysis was performed through SPSS v.23. The tests of demographic analysis, normality analysis, reliability analysis, descriptive and regression analysis were performed. The results showed that combined effect of technical knowledge and leadership qualities is negligible. Thus, the future research works should focus on studying combined effects of other factors on project success.