Embark on a captivating journey through the early history of particle physics in India with this special colloquium talk. Trace the evolution of research in cosmic rays and elementary particles from pre-World War I era to the 1960s. Discover the pioneering work of Indian scientists in radioactivity, nuclear physics, and cosmic ray research. Learn about key figures like Homi Bhabha, Vikram Sarabhai, and Piara Singh Gill, and their contributions to the field. Explore significant experiments, including the Sandakphu and Kolar Gold Fields projects. Gain insights into the influence of Cambridge University, the challenges faced by early researchers, and the legacy of these fearless and energetic pioneers. This comprehensive overview, delivered in simple and non-technical language, offers valuable lessons from India's scientific history and highlights the country's role in shaping modern particle physics.