The major difference between federal system and unitary system:
The distinction between unitary and federal governments is that while the federal government has a set hierarchy of sovereign levels, a unitary government does not. The power distribution in these systems is the basis for the distinction.
*Power sharing is the primary distinction between a federal government and a unitary one.
*In federal systems of government, the federal government and the state
governments share authority.
*When a government is unitary, there is only one level of government, or if there are subunits, they are all subordinate to the central government.
*State governments in the federal system of government answer to the people rather than to the federal government.
*State governments cannot be given orders by the federal government, but local or provincial governments must do what the federal government orders.
India, for instance, has a federal government. The Federal Government is divided into two categories.
Keeping Federations Together - Spain, India, and Belgium are a few examples.
Federations that are "coming together"—Australia, Switzerland, and the United States of America (USA) are a few examples.
Sri Lanka is an illustration of a unitary government.
Federal system features:
1) dual polity
2)written constitution
3) division of powers
4)supermacy of the constitution
5)Rigid constitution
6)single citizenship (it is been in only india)
Unitary system features:
1) single citizenship
2)strong centre
3)states not indestructible
4)single constitution
5) flexibility of the constitution
6) integrated judiciary