National Parks in India serve as vital hubs for biodiversity conservation, attracting a diverse array of visitors for wildlife observation, leisure, and academic research. Sustainability is essential for maintaining the planet’s long-term viability by balancing ecological, social, and economic factors. In national parks like Manas National Park, Assam, this balance is crucial for preserving biodiversity and cultural heritage while promoting socio-economic sustainability. This study examines the impact of National Park Sustainability (NPSus) and National Park Satisfaction (NPSat) on National Park Behavioural Intentions (NPBI). By focusing on Manas National Park, the research aims to provide insights into sustainable tourism practices that benefit both the environment and local communities. The study utilized a comprehensive questionnaire with established multi-item scales to assess National Park Sustainability (NPSus), National Park Satisfaction (NPSat), and National Park Behavioural Intentions (NPBI) among 233 national tourists visiting Manas National Park. The SEM analysis reveals that perceived sustainability (NPSus) negatively influences Behavioural intentions (NPBI), while satisfaction (NPSat) does not significantly affect NPBI. Additionally, certain factors positively impact both NPSus and NPBI.

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