Q. Which Jharkhand revolt did Lieutenant Ruk and Charles Megan suppress?
Answer: Dhal revolt
Notes: Lieutenant Ruk and Charles Morgan were sent by the British East India Company to suppress the Dhal revolt in Jharkhand. The Dhal revolt was a tribal uprising in the late 18th century lasting about 10 years. Their mission to crush this revolt failed, which led to increased British intervention by 1777. The Santhal revolt and other revolts in Jharkhand were suppressed by different officers at later times, not by Ruk or Charles Megan.