The book delves into the life and contributions of Dr. Diwan Singh Kalepani, one of the unsung Freedom fighter of India. He is considered to be the only person who fought against both the Britishers and Japanese colonisers. The aim of the book is to revive the legacy of Dr. Singh and ensure that people of all age groups recognize his esteemed devotion and sacrifices. The Author hopes his book will rekindle interest in the history of unsung heroes. He is committed to continuing his exploration of historical narratives, focusing on bringing the buried facts of annals to limelight.