Job satisfaction is one of the most widely discussed and researched topics. It is of major interest to the field of organisational behaviour and the practice of human resource management. It occupies an important place in such disciplines as industrial psychology and organisational communication etc. 'Job satisfaction has a rich history in the management literature. Research shows that job satisfaction is related to important work-related outcomes such as organisational commitment. Job satisfaction is of tremendous significance in the study of organisational behaviour. An organisation having satisfied workers is a healthy one and has a fewer problems. It is believed and also has been proved by many research studies that job satisfaction leads to high level performance. This is because a satisfied worker will not hesitate to put forth the best in him in the performance of the work allotted to him. In view of this an attempt is made to make a study of job satisfaction of transport workers in Tamil Nadu State Transport Corporation (TNSTC).