Explanation:

- Option 1: Vikram Seth

- Vikram Seth is an acclaimed Indian author and poet.

- He wrote the novel 'A Suitable Boy,' which was published in 1993.

- The book is one of the longest novels published in a single volume in English.

- Option 2: Devdutt Pattanaik

- Devdutt Pattanaik is known for his work on Indian mythology.

- His books often explore myths and philosophical themes, not typical fiction like 'A Suitable Boy.'

- Option 3: Khushwant Singh

- Khushwant Singh was a prominent Indian author and journalist.

- He is known for novels like 'Train to Pakistan,' but not 'A Suitable Boy.'

- Option 4: Arundhati Roy

- Arundhati Roy is a renowned Indian author and activist.

- She won the Man Booker Prize for her novel 'The God of Small Things.'

Correct Answer: Option 1: Vikram Seth