Central Square Foundation and Centre for Social and Behaviour Change at Ashoka University collaborated to develop and empirically test behavior change interventions to increase parental engagement on FLN in two districts of Uttar Pradesh. Culminating in May 2022, the interventions showed statistically significant outcomes. In conversation with Dr. Sneha Shashidhara, the principal investigator on the project, we unpack how behavior sciences can inform intervention design for better outcomes.