Today we are living in a information technological age where computer networks are playing a big role. On the other hand due to globalization and complex competitive market situation the world's people are going with speed. The role of scheduling theory is increasing day by day in minimize the idle time of man and machine at work. The waiting time problem can be solve by using scheduling technique to meet the objective of the organization with efficiency and effectiveness. Manufacturing industries are the backbone in the economic structure of a nation. As the benefits from a manufacturing system can be maximized if the available resources are utilized in an optimize manner. Optimized utilization of resources can only be possible if there is a proper scheduling system in place. This makes scheduling a highly important aspect of a manufacturing system.