G.D. Naidu rose from modest beginnings in Tamil Nadu to become a self-taught engineer, inventor and industrial entrepreneur. He worked across transport, electrical engineering, machinery and manufacturing and became closely associated with Coimbatore's emergence as an industrial centre. Unlike founders who followed formal technical careers, Naidu learned by dismantling, experimenting and building. His legacy lies in practical innovation: understanding machines deeply and turning technical curiosity into products, workshops and industrial ventures.