The correct answer is option 1, Vice-President of India. The Presiding Officer of the Rajya Sabha is the person who chairs the sessions and maintains order in the upper house of the Indian Parliament. The Vice-President of India holds this position by virtue of their office.
Alert - Correct answer should be option 1, Vice-President of India. The President of India is the nominal head of the state, but the Vice-President is the one who presides over the Rajya Sabha. Option 2 is incorrect. Option 3, Speaker of Lok Sabha, is the presiding officer of the lower house of Parliament, not the Rajya Sabha. Option 4, Prime Minister of India, is the head of government and does not hold the position of the Presiding Officer of the Rajya Sabha.