"Social reconstruction" is both a gigantic as well as a delicate task. It is much more easily achieved in Utopian imagination than through the slow process of directed or induced change. To reconstruct the society. many social reformers tried to remove these social and religious evils. Hence I would like to write about these society. Besides this " The Social reformers of modern India'' is the syllabus for the P.G. students under Bharathidasan University. So I hope it will be useful to the students for their studies. So that, I have great pleasure to write this book.