With rising climate change issues, firms globally are increasingly asked to disclose environmental-related information. An increasing number of stakeholders and investors now require companies to disclose more detailed environmental or carbon-related information, such as GHG emissions, to support effective decision-making and corporate planning. This study focuses on the effect of top-level management commitment on the quality of firm-level environment-related disclosures. For this purpose, a comprehensive environmental disclosure index based on the business responsibility and sustainability report (BRSR) of India's top-listed firms is developed to capture the level and quality of disclosures. Our results show that firms with dedicated board-level environments and sustainability committees perform better on environmental disclosures. This relationship remains valid even after considering differences in firm-level disclosure differences arising from firm ownership. Further, our results also show a positive association between the percentage of women on the board and the quality of firm-level environmental disclosures. This study provides important policy implications for regulating corporate environmental disclosures in emerging economies.