A state is an independent political entity with clear geographic boundaries. Nation, on the other hand, is a large body of people united by standard variables, such as culture, history, beliefs, and language. The key difference between state and nation is a socio-cultural body, while the state is a political and legal body.
A country is celebrated because of it is unique and attributable qualities, as well as it is collective rights. A state, however, maintains its characteristics and is more focused on sovereign rights. All the countries together form a nation. However, a state governs separately from the nation as a whole.
There are diverse sets of rules for each independent state. The national government is more concerned with law and order and maintaining the dignity of the federal government. That being said, every state must also adhere to national laws.