This paper identifies elements that are required to devise an effective brand extension strategy by a firm. Brand extensions are a known source of marketing new products. Firms spend a huge amount of budget on market research before extending their brand. A comprehensive literature review identifies six elements which are crucial to the success of brand extension. These elements are Parent Brand Image, Parent Brand Fit, Parent Brand Strength, Marketing Support, Quality of Parent Brand and Parent Brand Consumer Experience. A conceptual understanding of literature further suggests a direct relationship between brand extension success and elements presented in this paper. This relationship is presented in the form of conceptual framework. This framework provides guidelines for future research.