The study intended to document the different factors that were subjected to contribute to the delay in the metro bus construction project in Multan, Pakistan. In this regard, six major contributing factors have been highlighted to evaluate their impact on the project for being delayed and overrun time schedule. The work adopts the questionnaire-based survey as a means of data collection for the employees of the metro bus project Pakistan. The results show that out of six major delay factors, two have found a significant association with the metro bus project delay and four elements as insignificant. The factors that have found with a significant association are material and external issues, whereas, the client, contractor, consultant, and labor-related factors have been found as insignificant. The research recommends that project management should make effective contingency planning, experienced ways of acquiring the materials, acquire human capital from foreign markets, external factors, the release of funds on time and raw materials. The results of the study will be helpful for general practitioners consult the problems and recognize the factors associated with the project delays. The work will provide a base for the further research to incoming researchers, stakeholders, consultants and advance the assessment of mega projects in Pakistan as well as international level.