Explanation:

Here’s how it breaks down:

- Option 1: Vikram Seth — He’s known for “A Suitable Boy,” but not for “Our Trees Still Grow in Dehra.”

- Option 2: Amish Tripathi — He writes mythological fiction like the Shiva Trilogy, not nature stories.

- Option 3: Anshul Parmar — Not connected to this book in any way.

- Option 4: Ruskin Bond — This is the one. Ruskin Bond wrote “Our Trees Still Grow in Dehra” based on his childhood memories and love for nature, especially around Dehradun.

- Option 5: Chetna Dalwani — No relevant works tied to this book.

So yes, Ruskin Bond is the correct and only logical answer here.