Ranjana Sinha's research focuses on the intersection of sociology and public health, exploring how social factors influence health outcomes in various communities. Her work often examines the impact of socioeconomic status, education, and cultural beliefs on access to healthcare and overall well-being. In addition to her studies on health disparities, Sinha investigates the role of policy in shaping health initiatives. She collaborates with local organizations to implement evidence-based strategies aimed at improving health equity, particularly among underserved populations. Her findings contribute to a better understanding of how to create effective health interventions.