Downtime plays an important role in efficiency and profitability of any machine which is being utilized. In this research, a thorough analysis of different factors and their sub-factors contributing to the overall downtime of a BOPP film manufacturing machine is done. The data collected is divided among two different factors which are further divided among the sub-factors accordingly. Process-downtime and Engineering-downtime are the two basic factors on which the downtime of the machine depends. Further research study shows that the Engineering downtime causes much more halt as compared to the Process -downtime and it can be countered most effectively with the help of Preventive maintenance