In this research paper the researcher discusses the effect of rebranding and reposition on brand loyalty that impacts brand equity in case of Mobilink Pakistan. The researchers has selected rebranding and repositioning as independent variables, brand loyalty as mediating variable and brand equity as dependent variable. The study is done from twin cities of Pakistan Islamabad and Rawalpindi. Data has been collected through questionnaires. Hypotheses are built and significant of each variable is tested, correlation and regression are used on Spss. Analysis are done on the basis of Spss. The result shows that brand loyalty doesn't mediate the relation in case of researcher's study. For future researches more variable should be discussed and a larger sample size should be taken from different cities. I. Introduction Important brand elements include the name, logo, and slogan. These are considered to be vital organs of every brand name; and if a company decides to change any of these, it is important to make the change have an impact that the consumers would remember, recognize, and can associate with. The change should be able to make the consumers recall the brand name (AlShebil 2007). With rapid developments and changes in the consumer behavior, the need for outlining rebranding and repositioning strategies arose widely. It gave companies a competitive edge as well. Visual elements of the brand are redefined in an attempt to reposition the brand as a whole. Usually, the logo, color, and taglines are changed or improved. When a company rebrands or repositions itself, it has to consider factors that are affecting the company. Brand equity, i-e importance of your brand, how rebranding and repositioning is affecting your brand equity; the image and the importance that your brand gives to people. Another important factor is brand loyalty that is willingness of your customers to go for your brand. Considering how rebranding and repositioning is affecting your brand loyalty, the affect can be positive or negative depending on your marketing strategies and also evaluating how loyalty is affecting brand equity. The higher the brand equity or perceptive association, the more favorable will be the customer's response towards the promotional efforts of the brand. II. Background of the Study