Research objectives and methodology As revealed from the literature survey that application of Six Sigma improvement methodology appears rare among the large-scale food-processing sectors in India. Thus, the basic objective of this study is to implement Six Sigma at one of the leading food-processing units and illustrate the benefits drawn out of the same.The DMAIC methodology was applied to one of the chronic problems having considerable impact on the quality and productivity of the unit in question. The methodology adopted was case-study-based research. A single well-designed case study can provide a major challenge to a theory and provide a source of new hypotheses and constructs simultaneously (Cooper and Schinddler 2005). The paper discusses one complete implementation case of Six Sigma pilot project. The case study place more emphasis on a full contextual analysis of fewer events or conditions and their interrelations. A case study is an empirical inquiry that investigates a contemporary phenomenon within its real-life context, when the boundaries between phenomenon and context are not clearly evident, and in which multiple sources of evidence are used (Yin 2003). The case-study method allows an investigator to retain the holistic and meaningful characteristics of real-life events. Further, As per Simon (1969), case study is a method of choice when the researcher wants to obtain a wealth of information about the subject. Following text demonstrates complete phase wiz implementation of DMAIC methodology at a large-scale food-processing unit resulting in improvement in productivity and quality.