BPR was implemented at Mahindra & Mahindra in the mid-1990s to address manufacturing inefficiencies and improve productivity. It involved reengineering processes and implementing cellular manufacturing. This led to significant benefits like reducing headcount while increasing output, improving inventory control, and establishing a transparent process-oriented culture. BPR differed from TQM in seeking a complete redesign rather than incremental changes and helped transform Mahindra & Mahindra's operations and performance.