Implementing Lean Manufacturing Practices to Improve Operational Efficiency in Manufacturing Industry

ABSTRACT This study investigates how the application of lean manufacturing principles is influencing operational efficiency in the Indian manufacturing sector. Centred on tools such as 5S, Kaizen, and Total Productive Maintenance (TPM), the research explores the adoption patterns, employee perceptions, and measured impacts of lean initiatives. Using a structured questionnaire administered to 120 employees at and supported by industry benchmarks, the study employs quantitative methods including descriptive statistics, Multiple Linear Regressions, Independent Samples t- tests to derive insights. The results confirm that lean practices lead to measurable improvements in workplace organization, process cycle times, and defect reduction. 70% of employees report enhanced efficiency, while 54.2% rate 5S implementation as highly effective. However, challenges such as partial TPM rollout and inconsistent training remain. The study emphasizes that a structured lean rollout and strong cultural integration are critical for maximizing long-term operational gains.