The immediate cause of the Indian Revolt of 1857, or Sepoy Mutiny, was a seemingly minor change in the weapons used by the British East India Company's troops.
The response of the British government to these protests was to repeal the Townshend Acts. They revoked all of the taxes imposed by these acts except for the tax on tea. When the Townshend taxes were imposed, there was a great deal of protest in the colonies.