Step 1: Federalism meaning.
Federal system means division of powers between central and state governments. India has a unique federal structure with unitary bias.
Step 2: Key features (any four).
1. Written Constitution with division of powers.
2. Three lists – Union, State, and Concurrent (7th Schedule).
3. Independent Judiciary (Supreme Court as guardian of Constitution).
4. Dual polity – Union Government + State Governments.
Step 3: Conclusion.
Thus, Indian federalism combines both federal and unitary characteristics, making it flexible.