Leadership is a management skill that provides guidance and motivation for a group of people. It means to control, command, manage and direct a group of people towards a particular aim or goal. A leader is the one who encourages people working under him to work hard and be diligent and honest to their task, so as to accomplish their task successfully. (About.com)Kurt Lewin in 1939 led a group of people under his remarkable leadership and studies the qualities and negative points of a leader. This study led him to the conclusion of three unique styles of leadership. (U.S Army Handbook)A leader acts as an authoritarian when he orders or commands his workers to perform a particular action. In this case, the people working under the leader do not have enough knowledge about the operation or