Correct Answer: (c) Secretary, Planning Commission
Solution:To ensure the participation of States in the formation of five-year plans, the National Development Council (NDC) was set up on 6 August, 1952 by an executive order of the Government. The Prime Minister is the Chairman of the National Development Council and all the Chief Ministers of the States are its members. The Secretary of the Planning Commission is also the Ex-officio Secretary of the National Development Council. NDC finally approves five years plans. NDC acts as a coordinator between the planning commission and State Governments.