Under what circumstances can the President's duties be delegated to another authority?
The President's duties can be delegated to another authority when there is a casual vacancy in the office of President, or during the absence of the President. In such cases, the Vice-President will act as President or discharge his functions. Additionally, if the President's term expires and a new President has not been elected yet, the Vice-President will also act as President until the new President assumes office. These circumstances are mentioned in the context provided under sections 63, 64, and 72.