The production system of apparel manufacturing industry depends on different factors. Among these operation break down and SMV (standard minute value) distribution play vital role on the productivity depending on lead time to dispatch the product. To cope up with this situation shorten production cycle time in the garment industry is being an emergence. Sometimes labors are forced physically and mentally to perform their task within undefined time. In this study an approach to experimental knowledge based roadmap is presented for men’s shorts sewing line production. A details description of workstations sequence, machine and man allocation based on SMV are described. Reasonable SMVs is calculated by time study for producing shorts. Hourly target is also defined with normal efficiency as well as set up a well-balanced sewing line in manufacturing process. A standard may be maintained in the apparel industry to obtain maximum productivity by using the operation break down properly. The outcome of this observation is to synchronize workstations and to minimize SMV as the sense of productivity improvement.