Computers have always played a cardinal role in developing, implementing and foreseeing the future of technology. One such instance is its role in vehicle production plant. The aim of my paper is to automate the process of whole assembly plants by contributing for speeding up the production, qualitative and cost-efficient units. Using the software systems in mechanical industry. Interfacing IPMS with PLC (Programmable Logic Controller) the automobile manufacturing plant will be able to achieve control over the production line in order to keep check on the quality of the product. IPMS System is the Customization to SAP booking System. It is used for real time production booking by the use of mobile data acquisition devices for faster & accurate data capture & improved productivity. The development of IPMS and interfacing with PLC is to overcome the disadvantages of SAP booking like Mistakes during booking by manual entry and improving the productivity. Hence by creating this system it would be helpful for the manufacturing plant to work more accurately and efficiently.