The correct answer is option 2, the Election Commission of India. They are responsible for conducting elections to the office of the President of India.
Let`s analyze the other options:
Option 1, Secretaries of Lok Sabha and Rajya Sabha: The Secretaries of Lok Sabha and Rajya Sabha are administrative officials who assist in the functioning of the two houses of the Indian Parliament. Their role does not include conducting presidential elections.
Option 3, Ministry of Parliamentary Affairs: The Ministry of Parliamentary Affairs is a government ministry that deals with the smooth functioning of Parliament. They do not have the authority to conduct elections.
Option 4, Special body constituted by the Parliament: There is no special body specifically constituted by Parliament to conduct presidential elections. The responsibility lies with the Election Commission of India.
Therefore, option 2, the Election Commission of India, is the correct answer as they conduct the elections to the office of the President of India.