New Public Sector Management (NPSM) is an emerging model of public administration that has gained widespread attention in recent years. It aims to improve the efficiency and effectiveness of public services through the application of private-sector management practices. The Human Resource Management (HRM) function plays a crucial role in the success of NPSM. This paper critically examines the NPSM model in view of HRM, focusing on the critical success factors that can lead to the effective implementation of NPSM. The paper identifies and analyses various HRM practices that can enhance the performance of public sector organizations under NPSM. The critical success factors identified in this paper include strategic planning, employee empowerment, performance management, training and development, and employee motivation. The paper concludes that the successful implementation of NPSM requires a comprehensive and integrated approach to HRM that focuses on developing employees' capabilities and aligning their goals with the organization's objectives.