Step 1: Understanding the Constitution of India.
India is described as a "Union of States" in Article 1 of the Constitution. The term "Union of States" means that the states of India have no right to secede from the Union. Unlike a federal structure, where states can theoretically withdraw, India's system is a hybrid, with a strong central government.
Step 2: Explanation of Other Options.
- (a) Federation of States implies a relationship where states have sovereign powers, which is not the case in India.
- (b) Quasi federal is a term used to describe India's structure, but it is not the term used in Article 1.
- (d) Unitary state of a special type is not the description given in the Constitution.
Step 3: Conclusion.
India is officially described as a Union of States, which denotes a non-secessionist model.