Explanation:

- Option 1: Kiran Desai is known for her novel "The Inheritance of Loss," which won the Man Booker Prize. However, she is not the author of "Roads to Mussoorie."

- Option 2: Ashwin Sanghi is a contemporary author known for his works like "The Rozabal Line" and the "Bharat Series." He did not write "Roads to Mussoorie."

- Option 3: Amish Tripathi is famous for the "Shiva Trilogy" and the "Ram Chandra Series." He hasn't written "Roads to Mussoorie."

- Option 4: Ruskin Bond is a celebrated author renowned for his writings about the hills of India. He wrote "Roads to Mussoorie," a delightful collection of musings about his beloved Mussoorie.

- Your answer is correct. Ruskin Bond is indeed the author of "Roads to Mussoorie."

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