Federalism in India refers to the division of powers between the central government and the state governments. The Constitution of India establishes a federal structure with more than one level of government, which includes the Union (Central) government and the state governments. This is the essence of federalism, ensuring that different levels of government function independently in certain areas.
- (A) refers to the fundamental right to vote, not federalism.
- (B) refers to the secular nature of the state, which is separate from federalism.
- (D) describes the separation of powers, which is related to the structure of the government but not directly to federalism.
Thus, the correct answer is (C) Existence of more than one level of government in India.