Introduction: Emotional well being relates with capabilities of the adolescent to cope with normal stress in life and work contributes to the work productively. Mindfulness training enhances and influences the psychological well being. Adolescents face many challenges in present era. They often have difficulties in coping with many advanced skills. It is recommended to strengthen this phase of emotional and mental well-being. Mindfulness based stress reduction is positively related to improved well being of an individual. The Aim of the present study was to study the effectiveness of mindfulness on the emotional well-being in adolescents. Material and method: Prior to the initiation of the study, Ethical approval was taken. The study employed quantitative approach and Quasi experimental design. Students from Junior colleges from Pune, Maharashtra were recruited in the study. The participants of the study fulfilled the inclusion and exclusion criteria of the study protocol. The study and the control group included 50 participants each, and the samples were selected by purposive sampling technique. The tool consisted of demographic and emotional wellbeing questionnaire. The pre-test was conducted on both the groups. The intervention was given to study group fo a period of 10 days in morning for 25-30 minutes. Whereas the control group did not receive any intervention. Results: Mindfulness intervention significantly improved the emotional well-being score in study group. 46 samples exhibited good score of emotional well being in study group and in control group it was 39. Demographic variables like gender, type of family, Number of siblings and standard showed significant association with the emotional well-being score in the study group. Whereas in control group, the no such association was found in pre test analysis. Conclusion: Mindfulness can be beneficial in reducing stress and increasing emotional well-being of adolescents.