Knowledge constitutes a valuable, intangible asset for creating and sustaining competitive advantage within organizations. To fulfil organizational objectives, Knowledge sharing culture paves way for tacit knowledge externalization is highly emphasized. Knowledge Sharing is an activity through which knowledge is exchanged among employees in organizations to operate effectively in the global market. Amongst several factors that affect knowledge sharing in organizations, organizational culture is an effective Knowledge Management initiative for Knowledge sharing. As each and every organization has its own personality which is called as its culture, a Knowledge sharing culture that enables tacit knowledge externalization constitutes a major challenge in the field of Knowledge Management.