During the past ten years, Indian Startups have expanded across multiple sectors including FinTech, EdTech, HealthTech, e-commerce, artificial intelligence, and sustainable energy. Cities such as Bengaluru, Delhi-NCR, Mumbai, and Hyderabad have emerged as key innovation hubs. The ecosystem has also seen the birth of multiple "unicorns," or companies worth more than a billion dollars, illustrating the growing global competitiveness of Indian entrepreneurial ventures. Sustainability has been a key objective for organizations in recent years, specifically Startups in economically developing countries like India. In order to support long-term organizational results, Green Human Resource Management (GHRM) incorporates environmental management into HR policies and procedures. The adoption of Green HRM practices in Indian Startups is studied in this research, along with their effects on organizational sustainability. The adoption of Green HRM practices in Indian Startups is examined in this study, along with their effects on organizational sustainability. The study examines important GHRM aspects such as sustainable hiring, green skill development, green appraisal, and employee green behaviour using a qualitative and analytical method based on secondary sources and new empirical insights. The conclusions indicate that Green HRM has significance to fostering sustainability oriented, boosting the competitive edge of Indian Startups, and increasing environmental performance. By emphasizing on Startups, an under researched but crucial economic sector in India, the study adds to the expanding volume of Green HRM literature