Dr. G. Citybabu, an Assistant Professor at the Xavier Institute of Management and Entrepreneurship (XIME), Bangalore, specializes in Lean Six Sigma 4.0 & 5.0, holding a Ph.D. from NIT Tiruchirappalli. A Lean Six Sigma Green Belt certified professional with a strong industrial engineering foundation, he brings diverse experience from his roles as a Quality Engineer at Zero Tolerance Private Limited, Teaching Fellow at College of Engineering Guindy, and Facilitator at SIEMENS Lab. Dr. Citybabu earned his Master's in Industrial Engineering and qualified for GATE in 2020. His dedication to research was acknowledged with the Budding Researcher Award (2022-2024) from NIT Tiruchirappalli. His current research spans Lean Six Sigma 4.0 & 5.0, Quality 4.0, Operational Excellence, Human Factors/Ergonomics, Resilience, and Sustainability. He is a prolific contributor, publishing in international journals and serving as a peer reviewer for prestigious publications including the International Journal of Lean Six Sigma, International Journal of Quality and Reliability Management, and the International Journal of Productivity and Performance Management.