In 2016, a team led by Nawaz Chowdhury participated in the National Hackathon in Bangladesh, where they presented a Child Vaccination Scheduler app. The app assists parents in tracking their newborns' vaccination schedules, ensuring timely vaccinations and better health outcomes for children. Team members included Debdulal Singh, Abir Uddin, and Najmul Huda Opu. Their innovative solution gained attention for its focus on public health.