Name the only foreign power that gave active help to the British in suppressing the Revolt of 1857.

Correct option is C

The correct answer is (c) Nepal.

During the Indian Rebellion of 1857, the Kingdom of Nepal actively assisted the British in suppressing the uprising. Under the leadership of Prime Minister Jung Bahadur Rana, Nepal dispatched a military contingent to support British forces, notably contributing to the recapture of Lucknow and the defeat of rebel forces.

Additional Information:

• Bhutan: There is no historical record of Bhutan providing assistance to the British during the 1857 revolt.

• Sri Lanka: Then known as Ceylon, Sri Lanka was under British colonial rule during the 1857 revolt and did not play a role in the suppression of the rebellion.

• Burma: Similarly, Burma (now Myanmar) was under British control at the time and did not provide active assistance in suppressing the revolt.