The leader of Santhal Rebellion was :

Sidhu Manjhi

The correct answer is Option (1) → Sidhu Manjhi

Sidhu Manjhi was the leader of the Santhal rebellion. The Santhal Rebellion, also known as the Santhal Hool or Santhal Revolt, was a significant tribal uprising that took place in India during the mid-19th century. Sidhu Murmu and Kanhu Murmu, commonly known as the Murmu brothers, were the leaders of the Santhal Rebellion, also known as the Santhal Hool. The rebellion is named after the Santhal community, which played a central role in this resistance movement.