Which feature of the Indian Constitution refers to the existence of more than one level of government in the country?

Federalism

The correct answer is Option 2 - Federalism

The feature of the Indian Constitution that refers to the existence of more than one level of government in the country is known as "federalism." Federalism divides power between the central government and the state governments, allowing for multiple levels of government to coexist and govern different aspects of the country.