The present study aimed to evaluate the impact of "Strengths Gym" (Proctor & Fox Eades, in Strengths gym: Year 8, Positive Psychology Research Centre, Pennsylvania, 2009; Proctor et al., in J Posit Psychol, 6:377-388, 2011)--an intervention based on the Values in Action (VIA; Peterson & Seligman in Character strengths and virtues: A handbook and classification, Oxford University Press, Oxford, 2004) classification of character strengths among Indian students. Participants in this classroom-based intervention were 121 students from grades 7 and 8 (Age = 11-13 years, M = 11.22 years, SD = 1.61, 53% male) from two schools in the National Capital Region of India. Using quasi-experimental design, participating classrooms in each school were randomized into intervention or control conditions. Intervention group engaged in 24 sessions--one corresponding to each character strength, spread over 12 weeks. All participants completed a questionnaire comprising measures of well-being, life satisfaction, happiness, affect, and self-esteem at pre- and post-test. Participants reported significant gains in happiness, life satisfaction, and positive affect at post-test. Findings suggest promising evidence for character strength interventions among Indian students, while also contributing to research evidence about cross-cultural relevance and validity of an existing intervention. Fostering character strengths and well-being among Indian students emerges as an area of tremendous importance in the face of the stressors and challenges faced by this demographic group in the present times.