Business process reengineering (BPR) is a business management strategy that focuses on analyzing and redesigning workflows and business processes. The goal of BPR is to help organizations fundamentally change how work is done to improve customer service, cut costs, and enhance competitiveness. BPR seeks to help companies radically restructure by focusing on ground-up redesign of business processes and empowering employees. Case studies on BPR implementation in Indian Railways and Mahindra & Mahindra show benefits like increased revenues, improved productivity, and optimized operations. Key success factors include top management support, strategic alignment, change management, and overcoming resistance from employees.