Who among the following spiritual figures authored the famous inspirational book 'Powers of the Mind'?

Which of the following Indian Freedom Fighters authored the famous book titled 'Hints for Self-Culture'?

Who among the following was the author of the book 'Poverty and Un-British Rule in India'?

Who among the following authored the influential landmark book titled 'Hind Swaraj' in 1909?

Who is the author of the famous book 'Gulamgiri' ?

Who of the following is the author of a collection of a poem called ‘ Golden Threshold’?