This study assesses the impact of digital transformation on environmental sustainability within India's manufacturing industry, utilizing PLS-SEM. The investigation focuses on operational efficiency as a mediator and organizational culture as a moderator. Data were collected from 409 respondents in the manufacturing industry using an online Google form survey conducted from October 2023 to March 2024, employing convenience sampling. The findings of the study indicate that digital transformation significantly enhances operational efficiency and environmental sustainability. Operational efficiency is anticipated to mediate the relationship between digital transformation and environmental sustainability, with organizational culture moderating the impact of digital transformation on operational efficiency. This research contributes to theoretical understanding and provides practical insights for manufacturing firms on leveraging digital technologies for sustainable practices.