Which of the following books is NOT authored by Nirad C. Chaudhuri?

A Passage to India

The correct answer is Option (1) - A Passage to India

"A Passage to India" is not authored by Nirad C. Chaudhuri. It is actually a novel written by E.M. Forster. The other three options, "Scholar Extraordinary," "Autobiography of an Unknown Indian," and "The Continent of Circe," are indeed authored by Nirad C. Chaudhuri.