In this age of globalization the service  sectors  shows great promise as one with tremendous growth potential.. In this regard, employee stress is perhaps the most contributing factor to work performance. This paper attempts  to  find the  impact of   work stress  on   performance  among the  managers executives  in  three service sectors  namely hospital, hotel and bank in  Nilgiri  district . The data was collected  from 490 respondent and was  analyzed statistically using SPSS 19 software. The statistical tools used were independent sample t-test, one way ANOVA,  and Pearson bivariate correlation.The  findings  of the  study  revealed  that tourism employees face more stress when compared to hospital and bank employees.. The results confirmed that job stress had a negative effect on job performance. Hence organization needs to focus on these stress creating factors and try to minimize or overcome the same.