In the 1980s, the steel produced in India was not cost-effective, plagued by quality issues and unable to meet the standards required to take India a step ahead in its development goals. Enter J.J. Irani, fondly known as 'Doc' to all. It was his efforts at modernizing Tata Steel that changed all this. Today, Tata steel produces low-cost, high-quality metal of international standards. Under his leadership, Tata Steel ushered India into a new age of economic growth. His story doesn't end there, however. A leading industrialist, J.J. Irani was keenly involved in the 1990s economic liberalization that put India on the global map. He held positions on various Tata boards, the Confederation of Indian Industry and various other government-appointed committees. He was awarded the Padma Bhushan and an honorary knighthood by the British government for his work. Behind this formidable exterior was a man with a big heart and a fondness for life. He was a man of integrity and conviction, devoted to Tata Steel and the people there. The chapters that make up Doctor Steel, dictated by Irani in the months before his passing, look back at this journey.