Teachers' role in the school mental health initiatives cannot be overemphasized. Teachers own knowledge and beliefs regarding mental health influence the way they respond to students mental health crisis. Recognizing the need for wider implementation of evidence based school mental health interventions in the region and to help in addressing the mental health literacy of educators in resource constrained settings, World Health Organization, Eastern Mediterranean Region (WHO-EMRO) has developed a concise and practical manual of school mental health in December 2014. In the absence of any "whole school approach" study from Pakistan focusing on teachers training and addressing all the various evidence based components of promotion of positive mental health, Investigators aim to conduct a pilot randomized controlled trial to assess effectiveness of training based on WHO-EMRO manual, in addition to its feasibility & acceptability in improving teachers' mental health literacy and self-efficacy in dealing with students mental health issues.