Introduction: Governance, the least studied health system component, comprises a system of rules and processes, and is a key determinant for effective decision making for health care planning. This study aims to identify institutional, legal and policy factors which are either barriers or facilitators for the implementation of integrated mental health in primary care in the India. Methods: Semi-structured interviews were conducted with 33 key informants at the district and national levels with policy makers, state level health care planners and district planners and managers in India. The data were analysed using thematic analysis using the qualitative software NViVO 10. Findings: Participants stated that a conducive environment for mental health service delivery is necessary at the legislative, policy and planning levels, to facilitate integration of mental health into primary care. Amongst other factors, the need for active involvement of civil society and service user organisations, strengthening mental health information systems, and building the non-technical skills of the mental health workforce, were identified as particularly necessary to deliver adequate mental health services.Conclusion: Amidst the favourable policy context supporting collaborative and integrated care in India, this study identified low resourcing, weak collaborations and inadequate information to be crucial for integrated mental health in India at present.