The Moplah Rebellion (or Malabar Rebellion) was an armed uprising against British authority and Hindu landlords in Malabar, Kerala in 1921. But the the movement was severely suppressed by the British forces.
The ratio of the Indians and the Europeans in the British army was 6:1. It favors the Indian soldiers to take action against the Europeans during the time of the great revolt of 1857, as they were low in the strength.