Correct Answer:
Option D - Rajya Sabha is assisted by the Secretary General who holds the rank equivalent to Cabinet Secretary of the government of India, Under rules of business of Government of India Cabinet Secretary is ex-officio head of Indian Administrative Services the Cabinet Secretarial and All India Civil Service.
D. Rajya Sabha is assisted by the Secretary General who holds the rank equivalent to Cabinet Secretary of the government of India, Under rules of business of Government of India Cabinet Secretary is ex-officio head of Indian Administrative Services the Cabinet Secretarial and All India Civil Service.