The purpose of the study is to investigate the possible cause and effect relationships between occupational stress as dependent variables, and age, working experience, number of working hours daily as independent variables. With the help of linear regression model, the relationship has been explored. The present study was conducted on the workers working in unorganized sectors at Lucknow city, India. Unorganized sector comprises of construction, chikankari, brick kilns, sanitary and ornament workers. The study adopted survey research design and a sample of 500 workers were selected for the study. The data was collected with the help of modified version of occupational stress scale developed by the Srivastava AK (1976). The findings of the study revealed that age, gender, types of work are able to explain only 54% variance of the total variance in occupational stress.