Performance is a core element of the evaluating the task of the teachers. Performance has sustain its significance both in the academic and professional perspectives for many private sectors and governments schools. Management issues are fundamental to any organization. Performance is the process of assessing the progress of an employee or of a group of employee on a given job and his potential for the future development. How do we plan to get thing, performance management is the process of qualifying the efficiency and effectiveness of past action. Performance is a significant element of the information and control system in organization. This study appraises and demarcate the management and the job performance among school teachers in India. So, generally people like to send their wards to the reputed schools, known for high academic achievement record in the future. Because, the student having high division with high percentage of marks have a lot of opportunity at the time of admission, training and vocation purposes. The methodology insure on the prove of 437 primary school teachers selected from primary schools in Lucknow city, India. The predominant findings show that public schools teachers were well experienced and more qualified but trend of absenteeism and lateness was found in them. The study focus on the difference in job performance between Government and Private schools. The pawn used to cadence the Job Performance was Job Performance Questionnaire adapted and interpret by Researcher. Data analysis has been done by using descriptive statistics and independent sample t-test. The results sought that private school teachers have scored high on job performance in comparison government school teachers.