The paper is an attempt to analyze the impact of occupational stress among employees of some service sector units in Kolkata. The study is based on the information collected through a structured questionnaire formed with the help of psychometric instruments administered to 340 employees of different job categories in some selected service sector units by stratified sampling technique. For this purpose, six service sector units are chosen such as banking, insurance, transport, communication, health and education. Issues considered in this paper are general profile of respondents, physiological, psychological, behavioural consequences and management of occupational stresses among respondents. The study also made observations on health effects as well as stress management methods used by sample respondents. KEY WORDS: Physical, psychological, behavioural symptoms, occupational stress, management of stresses.