But for the very clear picture of this conclusion first of all we have to know that what is the federal constitution and what is unitary constitution.
What feature of Indian constitution makes it federal or what features makes it unitary.
This enables the Union government to exercise control over the State administration.
The equality of units in a federation is best guaranteed by their equal representation in the Uppers House of the federal legislature (Parliament).
It can declare a law as unconstitutional, if it contravenes any provision of the Constitution.
In spite of the fact that the Indian Constitution establishes a federal structure, it is indeed very difficult to put the Indian Constitution in the category of a true federation.
The Concurrent List has 47 subjects important to both the Union and the State such as Electricity, Trade Union, Economic and Social Planning, etc.After this procedure the amendment is signed by the head of the state i.e; the President.Since in India important amendments can be amended through this procedure Hence, Indian Constitution has been rightly called a rigid constitution. The Union List consists of 97 subjects of national importance such as Defence, Railways, Post and Telegraph, etc.Supremacy of judiciary is another very important feature of a federal state where there is an independent judiciary to interpret the Constitution and to maintain its sanctity.The Supreme Court of India has the original jurisdiction to settle disputes between the Union and the States.The following provision of Indian constitution makes it unitary Article I of the Constitution describes India as a ‘Union of States’, which implies two things: firstly, it is not the result of an agreement among the States and secondly, the States have no freedom to secede or separate from the Union.