Employee retention is the foremost problem; which all organizations are now facing in the global competitive environment. In this conceptual paper, I have attempted to bring out some employee retention approaches, which have developed over a period of time. Retention strategies for knowledge workforce, for achieving competitive advantage are also highlighted. Employee Retention refers to the ability of the organization to retain its employees and it's emerging as a big challenge to organizations. Organization culture, pay and remuneration, flexibility and job satisfaction highly influence the retention rate for any company. Retention of employees is an important function of the HRM.