Selection of the most optimal contractor in Indian Construction Industry using Topsis and Extended Topsis model

Contractor selection is one of the most important aspects in construction contract. This paper suggests importance of various multi criteria decision making models for contractor selection problem in Indian context. The study includes identifying the different criteria for bid evaluation and the means by which different decision making models may be used to evaluate the contractors with respect to each criterion. A general comparative study of topsis and extended topsis model has also been discussed. The research was conducted by sending a questionnaire to 300 respondents including public clients, private clients and contractors, and had an exceptionally high rate of response of 74%. From the survey results, the top 15 most preferred criterion from all the respondents has been selected and used to evaluate the contractors in the case study considered. Keywords– Contractor, Extended Topsis, Multi criteria decision making model, Prequalification, Topsis