Explanation:

The correct answer is option 'D' - National Development Council. The provision for the National Development Council has not been explicitly stated in the Constitution of India.

Inter-State Council:
- The Inter-State Council is a constitutional body that was established under Article 263 of the Constitution of India.
- It was set up to promote coordination and cooperation among the states and between the states and the Centre.
- The Council consists of the Prime Minister, Chief Ministers of all the states, and administrators of Union Territories.

All India Services:
- The All India Services are a cadre of civil servants in India, comprising the Indian Administrative Service (IAS), Indian Police Service (IPS), and Indian Forest Service (IFS).
- The provision for All India Services is explicitly mentioned in Article 312 of the Constitution of India.
- The President of India has the power to create and regulate these services in consultation with the state governments and the Union Public Service Commission (UPSC).

Contingency Fund of India:
- The Contingency Fund of India is a fund established under Article 267 of the Constitution of India.
- It is set up to meet unforeseen and urgent expenses of the government, such as natural calamities, relief measures, and other unforeseen events.
- The provision for the Contingency Fund of India is explicitly stated in the Constitution.

National Development Council:
- The National Development Council (NDC) is a non-constitutional body that was established in 1952.
- It was set up to provide a platform for the Prime Minister, Chief Ministers, and other stakeholders to discuss and coordinate matters related to economic planning and development.
- The NDC is an advisory body and does not have any explicit provision in the Constitution of India.

Therefore, the provision for the National Development Council has not been explicitly stated in the Constitution of India, making option 'D' the correct answer.