There are two essential elements of a constitutional republic. First, the law and not men are supreme. Second, the sovereignty of each individual expressed through elected representatives, replaces unelected sovereign authority.
In a constitutional democracy, the supremacy of the law is enshrined in the basic tenets of the constitution. No act of the legislature can infringe those tenets. If it does, courts intervene to establish the primacy of law. Elected bodies function within the framework of the constitution and are answerable to the people from time to time.

Click here to read the full article, in TheĀ Indian Express