This study examines the impact of Delhi's Happiness Curriculum, a pioneering educational initiative aimed at fostering emotional well-being, mindfulness, and positive psychology among students. Introduced in 2018, the curriculum emphasizes experiential learning, self-awareness, and interpersonal skills to enhance holistic development. Using a mixed-methods approach, this research evaluates the curriculum's effects on students' emotional intelligence, stress levels, and academic performance, as well as teachers’ perceptions of its implementation. Findings reveal significant improvements in students’ emotional regulation, peer relationships, and classroom engagement, alongside challenges in standardizing delivery across diverse school environments. The study underscores the importance of integrating well-being frameworks in education and provides actionable insights for scaling such initiatives globally.