Personality is an important determinant of employee behaviour. If an employee likes monotonous or boring work; if he steadfastly refuses additional responsibilities in the form of promotion; if a supervisor fails to reprimand an unruly subordinate; or if a middle level manager tries to climb over you the ladder to reach the top of an organization callously ignoring ethical considerations; the explanation for such behaviour in each case depends on the individual personality, which predisposes an individual to certain behavioural patterns. Thoughtful application of personality concepts, through subjective, helps us understand unique beings and groups with similar personality characteristics. Personality is the focal point determining motivation. It is impossible to give a full and comprehensive account of executive behaviour without raising questions of why they behave as they do. For e.g., why do effective executives spend so much time on personnel matters? Why don’t they concentrate their efforts on production? When we ask such questions regarding executive behaviour, we are trying to explore questions of motivation. Motivation is concerned with the study of the direction and persistence of action. Personality is the organism centre around which people’s motives form a unified and integrated system. Personality characteristics into centrifugation of individuals to occupy various positions in an organization. The traits required for a successful sales manager are different from those required for an executive in charge of production. The concept of personality is not be understood in an organizational context only. The need for understanding human characteristics, in general is more significant than comprehending personality in the context of organizations. Despite serious attempts, experts have not been able to comprehend the real nature of personality. Of all the problems that have confronted human beings since the beginning of recorded history, perhaps the most significant has been the riddle of their own nature. Attempts to answer ‘what is man?’ are countless, a great many avenues have been explored with an enormous variety of concepts being employed along the way. Astrology, philosophy and the life sciences are but a few of the many directions that the quest to understand human nature has taken.