Correct Answer: Narendra Modi

Solution : The correct answer is Narendra Modi .

Narendra Modi, the Prime Minister of India, is the author of the book "Social Harmony". The book is a compilation of Modi's articles reflecting his deep commitment to societal well-being. It underscores his passion for the underprivileged, his endeavours to empathize with their experiences and his dedication to social harmony. Modi emphasizes that genuine progress lies in ensuring happiness reaches even the remotest and most marginalized individuals, marking the true advancement of society.