Organisational Behaviour (OB) is the systematic study of human behaviour in organisational settings and the application of this knowledge to improve individual, group, and organisational effectiveness. It examines how individuals behave, how groups interact, and how organisational structures, culture, technology, and external environments influence behaviour at work. Organisational Behaviour is interdisciplinary in nature, drawing concepts and theories from psychology, sociology, anthropology, political science, economics, and management. Its primary objective is to understand, predict, and influence behaviour so that organisations can achieve their goals while ensuring employee satisfaction and development. The concept of Organisational Behaviour emerged from the recognition that organisational success depends not only on financial and technological resources but also on the effective management of human resources. Employees are not machines; they possess emotions, attitudes, values, perceptions, motivations, and personalities that significantly affect their performance. Organisational Behaviour helps managers understand these human aspects and develop appropriate strategies to create productive and harmonious workplaces. One of the most important features of Organisational Behaviour is its scientific approach. It is based on systematic observation, empirical research, and evidence-based principles rather than assumptions or intuition. Researchers collect data, formulate theories, and test hypotheses to explain workplace behaviour. This scientific orientation enables managers to make informed decisions regarding employee motivation, leadership, communication, and organisational change. Another significant feature is its interdisciplinary nature. Organisational Behaviour incorporates insights from several social sciences. Psychology contributes knowledge about personality, learning, motivation, emotions, and perception. Sociology explains group dynamics, social interactions, organisational structures, and formal and informal relationships. Anthropology helps in understanding organisational culture, values, customs, and cross-cultural behaviour. Political science provides insights into power, conflict, negotiation, and organisational politics. Economics contributes concepts related to incentives, decision-making, and resource allocation. The integration of these disciplines makes Organisational Behaviour comprehensive and practical. Organisational Behaviour is both descriptive and predictive. It seeks to describe how people