Correct Answer:
Option D - Giani Zail Singh was the President of India who did not held the post of Vice-President. Giani Zail Singh was the first Sikh President, he was also the President of the commonwealth during his tenure.
D. Giani Zail Singh was the President of India who did not held the post of Vice-President. Giani Zail Singh was the first Sikh President, he was also the President of the commonwealth during his tenure.