“A Letter to a Hindu” is a letter collection in e-book form of Leo Tolstoy's letters that he sent to his friend, Mohandas Gandhi, who was then residing in South Africa during the time of writing.
Leo Tolstoy spelled the word Hindu as Hindoo in the original text and was later changed to Hindu. “A Letter to a Hindu” was initially given to Tarak Nath Das in the year 1908 to reply on the latter's letters of request to Tolstoy to help India gain independence from British control.
The initial publication of A Letter to a Hindu appeared in "Free Hindustan" newspaper. Mohandas Gandhi heard about the letters and asked the permission of Leo Tolstoy to reprint the letters in South Africa who was just starting his propaganda as an activist in that country.
The contents of A Letter to a Hindu expounded on love as the ultimate means to free India which later inspired passive resistance as a means to gain Indian independence in 1947.