Operation Sindoor: India’s Shadow War and the Truth Behind the Smoke is a bold, investigative, and meticulously researched account of India’s most decisive covert operation in the 21st century. Drawing from exclusive sources, briefings, and first-hand narratives from the frontlines, this book uncovers the untold story of Operation Sindoor—a mission that changed the face of India’s military and diplomatic doctrine forever. Set against the backdrop of the brutal Pahalgam massacre, Operation Sindoor was not merely an act of retaliation, but a manifestation of India’s arrival as a decisive, pre-emptive global power. This book takes readers deep inside the planning rooms of South Block, the corridors of Delhi’s diplomatic missions, and the treacherous terrains of the Kashmir Valley where India fought a war not just of weapons, but of information, influence, and psychological dominance. Beyond the battlefield, the book analyses the evolution of India’s military doctrine from Balakot to Sindoor, explores the new age of hybrid warfare, and lays out the future of India's strategic posture in a world of shifting alliances and rising threats. With piercing insights, historical parallels, and grounded analysis, Operation Sindoor is not just a war story—it is a mirror to India’s soul as a nation that will no longer wait to be provoked, but act with courage, clarity, and conviction. Soumyabrata Sengupta’s lucid storytelling, coupled with his strategic expertise, makes this not just a book, but a doctrine—of decisive leadership, national resilience, and the spirit of Bharat standing tall in an uncertain world.