Most people agree that the modern concept of project management began with the "Manhattan Project".Project management is the act of starting, arranging, executing, controlling, and closing the task by a group to accomplish particular objectives and meet particular achievement criteria at the predetermined time. In the Manhattan Project different project management devices, for example, Complex Network Diagram, PERT Diagrams, the Critical Path Method and the Gantt chart were utilized on a substantial scale and their practicality were tried. Because of the Manhattan Project these project management techniques and tools have today moved toward becoming standard today.