Personality of children is significantly influenced by their school, where they come into contact with the teachers and friends. At home the children’s ideals are parents while in school they form their ideals around the teachers. During schooling, teachers become the most influential in children’s life who aid them in their transition into education system and the complex social environment. Not only do teachers provide guidance in academic achievement, they also support students socially and emotionally. It is an indisputable verity that supportive relationships play a crucial role in shaping adolescent behavior and successful development. Such supports can act as a buffer against stress and mental health problems .The school environment and related factors like experience and interpersonal relationships formed at school settings have the potential to develop maladjustment and behavioral problems. Researches posit that maladjustment is a well established predictive factor for Emotional and Behavioral Disorders (EBDs) among adolescents. The present study focuses on one category of EBD namely externalizing behaviors which are readily apparent in children’s behavior, plays out in their actions that are negative and directed to the external environment. Through this study, the researcher attempt at understanding the correlation between teacher support as perceived by students and its implications on externalizing behavior. Sample consists of 60 adolescent students from various schools across Kerala.