The correct answer is option 2: President. The executive head of state in India is the President. The President is the highest-ranking constitutional position in the country and represents the nation both domestically and internationally. The President is elected by an electoral college consisting of elected members of both houses of Parliament and the state legislatures. The President`s role is largely ceremonial, with limited executive powers. The President appoints the Prime Minister and other ministers on the advice of the Prime Minister. The Prime Minister, on the other hand, is the head of government and is responsible for the day-to-day administration of the country. The Cabinet Secretary, mentioned in option 3, is the top-ranking civil servant in the Indian administrative system and serves as the principal advisor to the Prime Minister. The Finance Secretary, mentioned in option 4, is a high-ranking official in the Ministry of Finance and is responsible for economic policies and financial matters.