Who wrote the non fiction book on religion and politics titled "Why I Am a Hindu", published in 2017?

Introduction / Context:
This question relates to contemporary political and religious non fiction. "Why I Am a Hindu" is a widely discussed book that presents a liberal and philosophical view of Hinduism. It is important in modern Indian discourse, so competitive exams frequently ask about its author as part of the books and authors section.

Given Data / Assumptions:

- The book title is "Why I Am a Hindu".

- The question mentions that it was published in 2017.

- The options list prominent Indian public figures.

- Only one of these figures is the known author of this book.

Concept / Approach:
The key idea is to connect Shashi Tharoor with his non fiction writings about India and Hinduism. Tharoor is known for several books, including "Inglorious Empire" and "India: From Midnight to the Millennium". In "Why I Am a Hindu", he explores his personal understanding of the faith and its philosophical depth while critiquing narrow interpretations. Recognising his name in connection with this title allows a quick and correct choice.

Step-by-Step Solution:
Step 1: Recall that Shashi Tharoor is a Member of Parliament and an accomplished author who has written extensively in English. Step 2: Associate "Why I Am a Hindu" with his series of works on India's history, culture, and politics. Step 3: Notice that Manmohan Singh is an economist and former Prime Minister but is not credited with authoring this particular religious commentary. Step 4: Recognise that Arnab Goswami and Venkaiah Naidu are known mainly for media and political roles respectively, not for writing this book, confirming Shashi Tharoor as the correct answer.

Verification / Alternative check:
Verification is straightforward if one remembers media coverage and interviews where Tharoor discussed this book and its themes. Bookstores and reading lists also group "Why I Am a Hindu" together with his other works. There are no competing authors widely associated with the same title, so confusion is minimal once the reader recalls his role as both politician and writer.

Why Other Options Are Wrong:
Manmohan Singh has written and edited academic and economic works but is not the author of this book.
Arnab Goswami is a television journalist and anchor, and although he may write columns, he is not linked with "Why I Am a Hindu".
Venkaiah Naidu has delivered speeches and held high office but has not authored this particular title.

Common Pitfalls:
One possible pitfall is confusing Tharoor's multiple books and assuming that a different author wrote one of them, especially because some titles mention India, Hinduism, or nationalism. Another issue is guessing based purely on political alignment rather than recalling actual authorship. Regular revision of a list of major contemporary non fiction books and their writers helps prevent such errors.

Final Answer:
The book "Why I Am a Hindu" is written by Shashi Tharoor.