Sukhada Tambe2014-05-082014-05-082014-05-082322-083Xhttp://dspace.vpmthane.org:8080/jspui/handle/123456789/3769International Research Journal of Business and Management – IRJBMOrganizational Citizenship Behaviour (OCB) has been explored and researched by scholars for more than twenty five years and it continues to be an area of interest for scholars. OCB refers to the voluntary behaviour/s exhibited by the employees while in the organization, as good citizens of the organization. This paper is an effort to understand the meaning, nature and scope of OCB and the paper also attempts to study the various dimensions of OCB. There is a detailed discussion on the five dimensions of OCB given by Organ (1988) and the paper also makes reference to other dimensions of OCB given by various scholars from time to time.Organizational Citizenship Behaviour, extra role behaviour, altruism, conscientiousness, sportsmanship, courtesy, civic virtue