Answer: India is a federal state. But the word "federation" is never mentioned in the constitution once. Instead, what is mentioned is that India is a "Union of States." Many experts also believe India is a quasi-federal country. It means that it is a federal state with certain characteristics of a unitary government.
The constitution of India has effectively established a federal state of government. We have various levels of government, the government in the center, which is the Lok Sabha and the Rajya Sabha. Then there are the various state governments, the Vidhan Sabhas and the Vidhan Parishad. And finally, there are the Municipal Corporations and the Panchayats, which are forms of local governance.