The purpose of this report is to identify and examine the critical success and failure factors for Public Private Partnership projects (PPP) and Engineering Procurement Construction (EPC) contracts and comparisons between them. The report provides a brief description of PPP and EPC and the area in which it is adopted internationally as well as nationally. Also types of PPP contracts and types of EPC contracts. The success and the failure factors available in PPP and EPC projects will be described and identified. In further study there will be comparison between the PPP and EPC contracting on the basis of different criteria, such as critical success factors and critical failure factors, conditions of contracting, risk allocation in the PPP and EPC construction contracting etc.