The correct answer is (c), The Lok Sabha Secretariat.
A constitutional body is a body that is established by the Constitution of India. The Constitution of India is the supreme law of India and it sets out the basic structure of the Indian government. The Constitution also establishes a number of bodies, including the President, the Prime Minister, the Parliament, and the Supreme Court. These bodies are known as constitutional bodies because they are established by the Constitution.
The Lok Sabha Secretariat is not a constitutional body. The Lok Sabha Secretariat is the administrative body of the Lok Sabha, which is the lower house of the Indian Parliament. The Lok Sabha Secretariat is responsible for providing support to the Lok Sabha in its legislative and other functions. The Lok Sabha Secretariat is not a constitutional body because it is not established by the Constitution.
The other options, (a) The Human Rights Commission, (b) Finance Commission of a State, and (d) Finance Commission at the Centre, are all constitutional bodies. The Human Rights Commission is a body that is established by the Constitution to protect and promote human rights in India. The Finance Commission of a State is a body that is established by the Constitution to recommend to the President the principles on which the financial relations between the Centre and the State should be determined. The Finance Commission at the Centre is a body that is established by the Constitution to recommend to the President the principles on which the financial relations between the Centre and the States should be determined.