**The Position of the Prime Minister of India is Superior to that of His Counterpart in Britain because his Office Enjoys Constitutional Basis**

The correct answer to this question is option 'D': his office enjoys constitutional basis. This means that the position of the Prime Minister of India is superior to that of his counterpart in Britain because it is based on the constitution of India, which grants certain powers and responsibilities to the Prime Minister.

**Explanation:**

1. **Constitutional Basis:** In India, the position of the Prime Minister is established and defined by the constitution. The constitution of India outlines the powers, responsibilities, and limitations of the Prime Minister's office. This ensures that the Prime Minister operates within the legal framework and is accountable to the constitution and the people of India.

2. **Executive Authority:** The Prime Minister of India holds significant executive authority. He is the head of government and exercises executive powers in the day-to-day administration of the country. The Prime Minister is responsible for the selection and functioning of the Council of Ministers and has the authority to guide and supervise their work.

3. **Parliamentary System:** India follows a parliamentary system of government, where the Prime Minister is the leader of the majority party or coalition in the Lok Sabha (Lower House of Parliament). The Prime Minister is accountable to the Parliament and is required to answer questions, participate in debates, and seek Parliament's approval for important decisions.

4. **Appointment and Removal:** The Prime Minister of India is appointed by the President, who acts on the basis of the majority support in the Lok Sabha. The Prime Minister can be removed from office through a vote of no confidence in the Parliament. This ensures that the Prime Minister remains accountable to the elected representatives of the people.

5. **Representation on the Global Stage:** The Prime Minister of India represents the country on the global stage and plays a significant role in international relations. The Prime Minister participates in international conferences, engages in bilateral and multilateral discussions, and represents India's interests in global forums. This enhances the stature and influence of the Prime Minister's office.

In contrast, the position of the Prime Minister in Britain does not have a specific constitutional basis. The British Prime Minister is not directly mentioned in the written constitution of the United Kingdom. The powers and responsibilities of the British Prime Minister are based on conventions, precedents, and historical practices. While the British Prime Minister holds significant power, it is not explicitly defined by a written constitution.

Therefore, the position of the Prime Minister of India is considered superior to that of his counterpart in Britain because it is based on a written constitution, which provides a clear legal framework and accountability mechanisms for the Prime Minister's office.