Abstract
BACKGROUND: There is a growing interest in the use of intersectoral collaborative (ISC) approaches to address complex health-related issues. However, relatively little empirical research exists on the challenges of implementing, fostering and sustaining these approaches. Our study explores the perceptions and experiences of programme implementers regarding the implementation of an ISC approach, focusing on a case study of nutrition programming in Assam, India. METHODS: We conducted qualitative semi-structured face-to-face in-depth interviews with eleven programme implementers from two selected districts of Assam, India. These participants were purposefully sampled to provide a comprehensive understanding of the experiences of implementing intersectoral collaboration. Following the interviews, an inductive thematic analysis was performed on the collected data. RESULTS: The study identified three main themes: operationalisation of ISC in daily practice, facilitators of ISC, and barriers to effective ISC. These were further broken down into six subthemes: defined sectoral mandates, leadership dynamics, interpersonal relationships and engagement, collective vision and oversight, resource allocation, and power dynamics. These findings highlight the complexity of ISC, focusing on the important structural and relational aspects at the macro, meso, and micro levels. Interpersonal relationships and power dynamics among stakeholders substantially influenced ISC formation in both the districts. CONCLUSION: Despite challenges, there is ongoing interest in establishing ISC in nutrition programming, supported by political development agendas. Success relies on clarifying sectoral roles, addressing power dynamics, and engaging stakeholders systematically. Actionable plans with measurable targets are crucial for promoting and sustaining ISC, ensuring positive programme outcomes. The insights from our study provide valuable guidance for global health practitioners and policymakers dealing with similar challenges, emphasising the urgent need for comprehensive research given the lack of universally recognised policies in the realm of ISC in global health practice.