This study examines the criticalities of the forms of corruption in infrastructure project procurement. Using non-probabilistic sampling techniques, 62 experts involved in infrastructure procurement processes participated in the study by evaluating the criticalities of the forms. The variables captured under the constructs of the forms of corruption were identified via the review of pertinent literature. They were empirically examined after being evaluated by the experts involved in the survey. A total of 27 variables were identified and examined. From the analysis, bribery, lobbying, and price-fixing were identified to be the most critical forms within the developing context. This study intends to contribute to a deepened understanding of corruption-related attributes in construction project management. It also offers valuable information to practitioners, particularly from the developing regions on the critical forms of corrupt practices within the different stages of the procurement process and the need to mitigate their incidence and widespread strategically based on informed decisions.