ब्रिटिश अधिकारियों ने 1832 में निम्नलिखित में से किस जनजातीय समुदाय के लिए 'दामिन-ए-कोह' के नाम से जाने जाने वाले क्षेत्र का सीमांकन किया था?

The Tana Bhagat movement of 1914, which later aligned with Mahatma Gandhi's non-violent struggles, was founded by which leader of the Oraon tribe?

Shibu Soren, a charismatic Santhal leader, was instrumental in forging unity between which two groups during the Jharkhand movement in the 1970s?