Tribal populations in India face significant healthcare challenges, resulting in poorer health outcomes and lower COVID-19 vaccination rates compared to non-Tribal districts. MOMENTUM Routine Immunization Transformation and Equity aimed to improve vaccine access and uptake among Tribal populations in Chhattisgarh and Jharkhand. Using a qualitative explanatory case study, researchers conducted 90 focus group discussions and interviews with Tribal communities, NGOs, and other stakeholders. Key strategies included community leader involvement, targeted counseling, flexible vaccine sessions, and adapted messaging for booster doses. These efforts increased vaccine awareness and acceptance, but sustaining long-term uptake requires ongoing funding and political support.