Data mining is widely used in diverse areas. This technology has a strong consumer focus – retail, financial, communication and marketing organisations, to drilldown into their transactional data and determine pricing, customer preferences and product positioning, impact on sales, customer satisfaction and corporate profits. With data mining, a retailer can use point-of-sale records of customer purchases to develop products and promotions to appeal to specific customer segments. In the present context, an association rule tells us about the association between two or more items. More Data, bigger study platform, has better study results, which in turn leads into developed business industries. Nowadays, with the current information transfer platform around the globe, one can never live a day existing in isolation. The article also deals with data privacy in such a way so as to perform data mining algorithms effectively without compromising on the security of sensitive information.