<sec> <title>OBJECTIVE:</title> To study the involvement and influence of local participatory governments consisting of Panchayat Raj institutions (PRIs) in implementing evidence-based interventions for eliminating maternal and child undernutrition in the state of Kerala, India. </sec> <sec> <title>METHODS:</title> In-depth interviews were carried out among stakeholders in six selected local governments using a semi-structured questionnaire. Transcribed interviews were coded and thematically analysed. </sec> <sec> <title>RESULTS:</title> PRIs facilitated nutrition interventions through additional resource mobilisation, nutrition monitoring and surveillance, acting as a more approachable point of governance, utilising general acceptance to mobilise volunteers to tackle local challenges, enabling formal and informal platforms for community participation and spaces of co-creation. Changes in the attitude of different stakeholders, timely policy backing and support, and interconnections at the local level aided the process. Gaps exist in awareness creation, dietary diversification, feeding behaviours, maternal mental health, infrastructure development, monitoring of anthropometric indicators and planning for nutrition interventions during emergencies. </sec> <sec> <title>CONCLUSION:</title> Results illustrate complex linkages PRIs have within the health system and how these linkages help in the implementation of interventions. The study explored previously identified pathways from the literature and identified additional pathways through which local participatory governance contributes to the successful implementation of nutrition interventions. </sec>