The Moplah Rebellion broke out in Malabar, which is located in present-day Kerala, India. It was a significant uprising that took place from 1921 to 1922. The rebellion was primarily led by the Mappila Muslim community, also known as the Moplahs, who were demanding political and economic reforms.

Option 1: Uttarakhand is not the correct answer. Uttarakhand, formerly known as Uttaranchal, is a state located in the northern part of India. It did not experience the Moplah Rebellion.

Option 2: Chauri Chaura is not the correct answer. Chauri Chaura is a small town in Uttar Pradesh, India. It is known for the Chauri Chaura incident, which was a violent clash between Indian protesters and British police in 1922, during the Indian independence movement. It is not related to the Moplah Rebellion.

Option 3: Malabar is the correct answer. The Moplah Rebellion took place in this region, which is in present-day Kerala, India. The Moplahs, who were mainly Muslim peasants, rebelled against British colonial rule and the oppressive feudal system.

Option 4: Telangana is not the correct answer.