This study contributes to the growing body of knowledge on fault-tolerant control for single-phase faults in traction drive systems, by providing an effective remedial strategy based on the use of Capacitor-based Four-leg Neutral-point-connected Inverter in Permanent magnet synchronous motor applications. A comprehensive mathematical model of the traction drive system is developed to analyze system behavior during a single-phase fault. Based on these analyses, a remedial control strategy is proposed to maintain uninterrupted operation with minimal impact on critical performance, torque and speed. The proposed strategy is validated through simulation studies. The results highlight the effectiveness of the CFNI topology and the proposed strategy as a viable solution for enhancing system resilience against single-phase faults, while maintaining performance and operational integrity.