Which of these books are written by Nirad C Chaudhuri?
[A] The continent of Circe
[B] Principal Upanishads
[C] A passage to England
[D] Our new rulers
[E] The autobiography of an unknown Indian
Choose the correct answer from the options given below:

The correct answer is A, C and E only.

Let us analyze the books written by the eminent Indian writer Nirad C. Chaudhuri to verify this option:

[A] The Continent of Circe: Published in 1965, this famous work of non-fiction by Nirad C. Chaudhuri explores Indian society and culture. It won the prestigious Duff Cooper Memorial Award in 1966.
[C] A Passage to England: Published in 1959, this book details Chaudhuri's impressions and travel experiences during his first visit to England at the age of 57.
[E] The Autobiography of an Unknown Indian: Published in 1951, this is his masterpiece and debut book. It is a highly acclaimed autobiography that narrates his life from his birth in Kishoreganj (now in Bangladesh) up to his years in Calcutta.

Now, let us look at the other options to understand why they are excluded:

[B] Principal Upanishads: This book was translated and written by Dr. Sarvepalli Radhakrishnan (the second President of India), not Nirad C. Chaudhuri.
[D] Our New Rulers: This pamphlet/essay was written by political analyst and writer Madhu Limaye, not Nirad C. Chaudhuri.

Therefore, books A, C, and E are the only ones authored by Nirad C. Chaudhuri.