In the Big Data age, it is necessary to remodel the traditional data warehousing and Online Analytical Processing (OLAP) system. Many challenges are posed to the traditional platforms due to the ever increasing data. In this paper, we have proposed a system which overcomes the challenges and is also beneficial to the business organizations. The proposed system mainly focuses on OLAP on Hadoop platform using Apache Kylin. Kylin is an OLAP engine which builds OLAP cubes from the data present in hive and stores the cubes in HBase for further analysis. The cubes stored in HBase are analyzed by firing SQL-like analytics queries. Also, reports and dashboards are further generated on the underlying cubes that provides powerful insights of the company data. This helps the business users to take decisions that are profitable to the organization. The proposed system is a boon to small as well as large scale business organizations. The aim of the paper is to present a system which builds OLAP cubes on Hadoop and generate insightful reports for business users.