Purpose: This qualitative study investigates how workplace involvement and Organizational Citizenship Behavior (OCB) interact to promote sustainable campus cultures in Indian Higher Education Institutions (HEIs). It aims to comprehend academic staff members lived experiences as they negotiate their responsibilities as possible sustainable change agents.                                                      

Design/Methodology/Approach: Two public and two private Indian institutions were included in a multiple case study design. 32 semi-structured interviews, four focus groups (one for each institution), non-participant observations, and document analysis were used to gather data. A methodical approach to theme analysis was used to examine the data.  

Findings: Three main themes emerged from the analysis: (1) The Architecture of Participation, which describes the formal and informal structures that facilitate or obstruct faculty voice; (2) The Spectrum of Green OCB, which describes how faculty voluntary actions range from passive advocacy to active championing; and (3) The Synergistic Engine, which explains how meaningful participation acts as a catalyst for sustained OCB, which in turn becomes the lifeblood of a pervasive sustainable campus culture. A conceptual model demonstrating this dynamic interaction is presented in the study.                               

Practical Implications: In order to establish genuine, empowered places for faculty participation, HEI leaders must go beyond tokenistic committee forms. It is essential to value and acknowledge "Green OCB" through both official and informal incentives. Instead than being viewed as top-down compliance jobs, sustainability activities should be portrayed as group, value-driven endeavors.                                     

Originality/Value: The human and cultural aspects of sustainability in Indian HEIs are deeply and contextually richly understood thanks to this study. It provides a sophisticated conceptual model of the relationship between OCB and participation, laying the groundwork for further study and calculated action.