The growing divide between the capitalist mode of development promoted by the state and the participative development model suggested by the people has brought ecology, environment, and existence to the core of all contemporary debates. The Adivasi (indigenes) who constitute 8.6 percent of the entire population of India are engaged in a constant battle to save their ecology and landscape. Represented as communities whose existence is intertwined with ‘Jal, Jungle, Jameen’ (water, forest, and land), Adivasis are the most prominent communities facing dispossession and displacement from their roots to further the ideology of development in which they have no stake. The notion of Adivasis as ‘savage’, ‘primitive’, and ‘backward’ communities that are incompetent of ‘developing’ themselves, resulting in their ‘backwardness’ gets carried over from the colonial to the contemporary period. Exposed to the processes of mining and industrialisation, Adivasis and their ecological resources have been exploited since the colonial period to suit the development model of the state. The Adivasi notion of selfhood was overlooked in the process of making the areas inhabited by them zones of ‘exclusive governmentality’. The paper argues and analyses this transformation process of Adivasis into ecological warriors; a process in which they used their shared, remembered and lived past to assert their customary rights. Basing the study on three environmental movements of state of Jharkhand in Central India, namely the Koel-Karo movement of the 1980s, the Netarhat movement of the 1990s, and the Pathalgadi movement of 2017–18, the study underlines that the Adivasi of Jharkhand anchored on their customary rights as a weapon, to protect their ecology and landscape against various state-sponsored development schemes. Drawing on the methodology of field investigation, interaction with the NGOs, government reports and media reports, the article argues that these community struggles are rays of hope for a global ecological future.