Under which Article of the Constitution of India, executive power of the union is vested in the President?

Which of the following is true regarding the President's election?
P. If there are significant vacancies in the collegium selecting the President, a person's election as President can be questioned.

Q. A person nominated for the post of President needs 50 voters as proposers and 50 voters as seconders to have their name entered on the ballot paper.

Who among the following has the power to grant Pardons as per the Constitution of India?

Which of the following judicial powers of the President does not match its definition?

On whose recommendation can the President issue directions to the Governor of a State that he/she shall—

With reference to the oath of office of the President and the Vice-President, which of the following statements is correct?
(A) The President takes an oath to preserve, protect and defend the Constitution.

(B) The Vice-President takes an oath of allegiance and fidelity to the Constitution.

How many members of the Rajya Sabha are nominated by the President?