Background: Mindfulness skills are widely recognized for their positive impact on mental and physical well-being. However, various populations who could benefit from mindfulness practice often face barriers preventing them from engaging in it. To address this issue, a five-week mindfulness module was developed, with the aim of examining the effects of mindfulness-based interventions on emotion regulation and happiness levels among Indian students in a randomized controlled trial (RCT). Method: A two-group pretest-posttest design was utilized with a total sample of 100 students aged 14 to 19 years. The students were randomly assigned to two groups: an experimental group (n=50) and a waitlist control group (n=50). Participants from both groups completed the Emotion Regulation Questionnaire (2003) and the Oxford Happiness Questionnaire (2002) to assess their emotional regulation abilities (cognitive restructuring and emotional suppression) and happiness levels.