Lean manufacturing or lean production, is quite simple. Basically lean means a production practice that undertakes the expenditure of any resources for achievement of any goal rather than creation of value for the customer for the end consumer to be wasteful and thus a target can be achieved working from the perpective or considering the needs of consumer value is defined as process that the consumer is ready to pay for the specific goods and services.Here we have implemented the lean manufacturing technique in an automobile industry (wiring harness) to reduce the waste elements of a production process. Initially, we created a current state map for the complete process. Then the process studied showing various conditions and parameters like cycle time, inventory etc. Then the bottlenecks were identified in the processes which were hampering the complete production process. Time study was done to actually know the time taken to complete the process and that time was compared with the tact time. The time of all the processes was balanced to make the process smooth. Then a future state map was designed showing the process flow after improvements with complete parameters.The main objective of this study is to remove the wastes from the process which is the main objective of lean manufacturing.