On the 9th of June 2023, we commemorate the 123rd death anniversary of Birsa Munda (1875-1900), a revered Adivasi leader. Between 1895 and 1900, Birsa Munda led the Ulgulan (great tumult) in the Chotanagpur region of present-day Jharkhand, challenging the British Raj and their collaborators, including Christian missionaries and Hindu zamindars. Birsa Munda’s Ulgulan had a dual purpose: to revitalize the Adivasi community, which had been demoralized by colonial domination, and to combat the dikus (both British and indigenous exploiters) while striving for Munda Disum (Munda rule/country). Although Birsa Munda was captured by British forces in February 1900 and subsequently died in Ranchi jail on June 9th, 1900, his rebellion had far-reaching implications for Adivasi's political consciousness and brought about administrative changes in the region. As a result of the movement, the British government enacted the Chotanagpur Tenancy (CNT) Act in 1908, recognizing the customary land rights of the Adivasis in the area. The CNT Act has played a pivotal role in safeguarding the Adivasis against land dispossession and has served as a catalyst for Adivasi mobilization and solidarity during both the colonial and post-colonial periods.