The Santhal rebellion, or Santhal Hool of 1855-56, was a significant tribal uprising against British rule. The Santhals were exploited by zamindars, moneylenders, and British officials, losing their traditional lands to oppressive policies. They were subjected to unfair taxation, usurious lending practices, and social discrimination. The rebellion, led by tribal leaders like Sidhu and Kanhu Murmu, was a cry for justice and freedom. Despite their eventual defeat, the Santhal rebellion highlighted the injustices faced by tribal communities and led to some reforms in the governance of tribal regions.