Selection of tender is a multi-criteria decision making process in which project performance is influenced by time, cost and quality. The appropriate tender selection can ensure a smooth delivery process and eliminate several complexities during construction. In this paper, the evidential reasoning (ER) approach which is capable of processing both quantitative and qualitative data is applied to find out the influencing factors as a means of solving the tender evaluation problem. The process of building a multiple criteria decision model of a hierarchical structure is presented, in which both quantitative and qualitative information is represented in a unified manner. By using a case study of Bangladesh the tender evaluation problem is then fully investigated using the ER approach. Finally we show the rank of influencing factors of best tender.