Constitution of the States of the Union in India and Canada:

In a federation, the constitution serves as the fundamental law that establishes the structure of government and outlines the powers and responsibilities of its different levels. The constitution of a federal state typically includes provisions that define the relationship between the central government and the constituent states or provinces. Let's explore the options given and determine which federations include the Constitution of the States of the Union.

a) India and U.S.A:
India is a federal republic with a parliamentary system. It has a written constitution that outlines the powers and functions of the central government as well as the states. However, the Constitution of India does not include the Constitution of the States of the Union. The states in India have their separate constitutions that govern their internal affairs, while the central government operates under the provisions of the Indian constitution.

Similarly, the United States of America is a federal republic, but its constitution does not include the Constitution of the States of the Union. The U.S. Constitution primarily focuses on the powers and structure of the federal government, while the individual states have their own constitutions that govern their internal affairs.

b) U.S.A. and Australia:
As mentioned earlier, the U.S. Constitution does not include the Constitution of the States of the Union. Likewise, Australia, which is a federal parliamentary constitutional monarchy, does not have a Constitution of the States of the Union. Australia has a written constitution that outlines the powers and responsibilities of the federal government and the states, but it does not specifically include a separate constitution for the states.

c) India and Canada:
India and Canada are both federal states that have a Constitution of the States of the Union. In India, the Constitution of India outlines the powers and functions of the central government, while the individual states have their own constitutions that govern their internal affairs. Similarly, in Canada, the Constitution Act, 1867 establishes the federal structure of the country and provides for the division of powers between the federal government and the provinces. The provinces in Canada have their separate constitutions that govern their internal affairs.

Therefore, the correct answer is option 'C' - India and Canada.

Option (a)