The present study is an attempt to study the Classroom Performance of Senior Secondary School Teachers, who are said to be the real builders of the nation. Their performance is not only affected by demographic factors like Age, Gender, Experience and Locality etc., but also by the other factors like Emotional Intelligence and Personality. In doing so, multistage random sampling procedure was employed to elicit responses from 425 senior secondary school teachers identified in various parts of the State. The data was analyzed by 2x2x2(ANOVA) and t-test. The findings of the study revealed that (1) the senior secondary school teachers have been found to be ‘substantially effective’ in their performance, (2) there is significant independent effect of locality, emotional intelligence and personality on performance of senior secondary school teachers, and (3) there is significant two factor interactive effect of variables on classroom performance of senior secondary school teachers.