Nowadays, proper utilization of the available equipment and machines is a high-priority task in every industry. The equipment’s effectiveness can be enhanced and acquired through the proper implementation of overall equipment effectiveness (OEE). The equipment’s effectiveness has been unfolded by measuring the OEE in this work. A top manufacturing company's data for six days from two shifts were examined to determine the current OEE standard, and downtime data was also gathered. This study emphasizes developing a correlation between OEE and downtime. The findings revealed a negative correlation between OEE and downtime. The critical causes of the downtime have been identified and how the application of total productive management (TPM) can decrease downtime resulting in an increase in OEE was illustrated. The influence of availability rate, performance rate, and quality rate on OEE was also discussed in the article. Availability rate has the closest relationship with OEE. One of the study's limitations is the lack of information on OEE improvement over the existing OEE following the implementation of TPM. This study is expected to guide practitioners in implementing OEE to improve productivity and profitability.