Effectiveness is a pre-requisite for success in one’s profession. Teacher effectiveness is the degree to which the teacher is able to set learning goals for students, engages the learners and impact and lead the learners in the achievement of goals. Only effective teachers can perform their duty well and as such, a sound mental state of the teachers is a pre-requisite to develop a balanced personality and makes the students mentally healthy. Mentally healthy teachers are able to manage stress and they are capable of coping with any good or worst situation of life. They are good decision makers and conflict managers. In order to analyse the link between teacher efficiency and mental health of secondary school teachers, the researcher selected a sample of 104 (70 male and 34 female) secondary teachers from Barkhetri Block, Nalbari District of Assam. The study uncovered that major part of secondary school teachers have high level of efficacy and maximum teachers are mentally healthy and they can perform their duty well.

Teacher Effectiveness, Mental Health, Secondary school.