The Indian Constitution is based on the principle of federalism, which means that there is a division of power between the central government and the state governments. The following are the key features of the Indian Constitution with regard to federalism:

• Division of powers: The powers of the Indian government are divided between the central government and the state governments.
• Dual polity: India has a dual polity, with each level of government having its own set of powers, responsibilities, and resources.
• Constitutional division of power: The division of power between the central government and the state governments is enshrined in the Constitution.
• Sovereignty: The Indian Constitution does not create co-sovereignty. The central government is supreme and the state governments derive their power from the central government.
• Single citizenship: India follows a system of single citizenship, which means that each citizen owes allegiance to the Indian Constitution and is subject to its laws, regardless of the state in which they live.
• Balance of power: The Indian Constitution seeks to maintain a balance of power between the central government and the state governments.
• Independent judiciary: The Indian Constitution establishes an independent judiciary that can arbitrate disputes between the central government and the state governments.
• Flexible federalism: The Indian federal system is often described as flexible, as the Constitution allows for the central government to take control over certain areas in times of crisis or emergency.

Overall, the Indian federal system is a unique blend of federalism and unitary principles, with a strong central government and autonomous states.