The MAI Project is dedicated to improving maternal and child health in both rural and urban settings, with a special focus on underserved slum communities. Our efforts include monitoring gestational weight gain among pregnant women, assessing the use of maternal and child healthcare services, and studying infant and young child feeding (IYCF) practices. Through longitudinal and qualitative research, the project generates evidence to guide effective interventions and policies for healthier outcomes among mothers and children across diverse environments.