Cancerman to Ironman is the powerful, real-life memoir of Indian Police Service (IPS) officer Nidhin Valsan and his triumphant battle against stage-4 non-Hodgkin's lymphoma.After enduring months of excruciating pain and misdiagnoses, Valsan faced a grueling regiment of chemotherapy that pushed his body to its absolute limits. Refusing to let the disease define him, he set a monumental recovery goal: conquering one of the world's toughest endurance challenges.