The automotive industry is striving hard to find new methods to reduce the manufacturing cost, rejections and improve quality. Productivity is the measure of extent to which a rated output can be expressed from giving input. Productivity improvement deals with achieving the more output from the less input within specified time. This can be done by improving basic process, improving existing methods and procedure and also by controlling rejections and rework. Rejection or scrap is threat to any organization. Eliminating or minimizing the scrap is the main aim of any manufacturing unit. The outcome of the present work is being suggestion to improve and change certain procedure in the process and also to improve certain process, which is causing bottlenecks in the 5C line. By implementing certain changes in the process the productivity is observed to be increased considerably by reducing rejection rate from 10.61% to 5.50% in 5C line.