There are few films in the Telugu film industry that make you feel the way this one does — empathise and fall head over heels in love with the protagonist even in her lowest of lows. The subtopic of prevention, well-being, and health promotion within mHealth is particularly ripe for deeper exploration. Though the opportunities to leverage mobile phones for health are new, the challenges confronting researchers and practitioners are well-established and theoretically complex, with roots in decades of work on mediated behaviour change campaigns and theories. Few know how innocent and young she was when she married an already wedded Ganeshan out of love, despite many calling her a home-breaker. Nadigaiyar Thilagam Review: MHealth in Practice: Nag Ashwin deserves all the credit as he has done a stupendous job. This topic is inherently interdisciplinary. Samantha acing an emotional scene almost at the end of the film makes one remember the potential she has, the powerhouse of talent she really is. This is a focused edited volume with contributions from leading researchers and practitioners to identify best practices in using mobile technologies to promote healthy behaviours and reduce unhealthy ones in resource-constrained settings with a special focus on developing countries.