In the context of environmental sustainability, can Green Inclusive Leadership empower and enhance the effectiveness of employees in the manufacturing sector? If so, what are the fundamental mechanisms that drive this positive influence? Sustainable leadership is recognized by researchers as key to promoting and strengthening sustainability in organizations. Therefore, the present study aims to achieve two primary objectives: (a) investigate the impact of Green Inclusive Leadership on Green Organizational Citizenship Behaviour, and (b) explore the mediating role of Employee Green Creativity in the association between Green Inclusive Leadership and Green Organizational Citizenship Behaviour. The study collected data from 254 employees at an Indian dairy manufacturing firm located in Ranchi, Jharkhand by following a random sampling technique. In order to validate the proposed conceptual framework, structural equation modelling was implemented. The results demonstrated a positive direct association between Green Inclusive Leadership and Employee Green Creativity, Green Organizational Citizenship Behaviour, respectively. Moreover, Employee Green Creativity partially mediated the relationship between Green Inclusive Leadership and Green Organizational Citizenship Behaviour. Subsequently, on the basis of research findings, the implications and limitations of the present study were delineated.