From Indian Airlines to IndiGo: My Journey of 50+ Years of Engineering Operations by S. C. Gupta is a compelling autobiography that chronicles not just the professional life of an aviation engineer, but also the evolution of India’s civil aviation ecosystem over five transformative decades. Written with clarity, honesty, and quiet authority, the book offers a rare insider’s perspective into public sector aviation, organizational systems, leadership, and the making of India’s most successful airline—IndiGo.