As human resource management is concerned with the people dimension in organization, at first, we should know organization in detail. Organizations are human associations in which two or more people seek to achieve a common goal or set of goals. In other word, organizations are established by the people and for the people. It consists of people working together through interrelationships and interactions. Organizations are created to achieve different goals. To achieve goals it should run various activities. Therefore an organization must consist of a structure, which defines jobs and relationships. In organization, different levels and division of jobs are defined to achieve specialization through division of labours. Organization design and job descriptions are the part of organizational structure, which limit the behaviour of the members in organizations.