Which of the following Indian Presidents served the longest in office?

Correct option is D

The correct answer is (d) Dr. Rajendra Prasad.
· Dr. Rajendra Prasad was the first President of India and served the longest tenure among all Indian Presidents to date. His presidency lasted from 1950 to 1962, spanning two terms.
· Dr. Prasad played a pivotal role during the formative years of the Indian Republic, having been closely involved in the Indian freedom struggle and later in framing the Constitution of India as the President of the Constituent Assembly.
· His leadership during this period was marked by his dedication to nation-building and his efforts to establish and uphold the democratic institutions of the new nation.
Additional details on other options:
· Dr. S. Radhakrishnan served as President from 1962 to 1967. He was highly respected for his scholarly background and his philosophical insights into Indian culture and politics.
· Dr. Shankar Dayal Sharma served as President from 1992 to 1997. His tenure is noted for his deep commitment to constitutional values.
· R. Venkatraman served from 1987 to 1992, playing a significant role during a period of significant political changes in India.