Six Sigma is a tool which helps industries to control the defects and all other issues which can be possible factors to
reduce the growth of the company. It was seen that in large scale industries, the Six Sigma is used form previous decades but
when goes to small and medium scale industries, there is lack of implementation of Six Sigma and its tools, so in present review
paper, various research papers selected in which small and medium scale industries are selected. In this paper all possible
aspects of the Six Sigma is presented in detailv