Concept:A constitution that blends elements of both unitary and federal systems is known as a quasi-federal constitution.
Explanation:A federal constitution divides power between a central authority and regional units, with each level enjoying autonomy.
A unitary constitution concentrates power in a single central government, with regional units deriving authority from it.
A quasi-federal constitution combines both: it is primarily federal in structure but includes unitary features that allow the central government to override or control states when needed.
For example, the Indian Constitution has a dual polity (Union and States), a written and rigid constitution, and independent judiciary—these are federal features.
At the same time, it includes a single citizenship, an integrated judiciary, All‑India Services, and the power of the Union to legislate on state subjects under certain circumstances—these are unitary features.
Therefore, the term “quasi‑federal” correctly describes a constitution that contains characteristics of both unitary and federal systems.
Quasi‑unitary would imply that states have unusually broad powers, which is not the case here.
Unitary and federal structures, by definition, do not mix features of the other form.
Answer:Quasi‑Federal