Mihajlo Idvorski Pupin was a physicist and scientist who revolutionised the sphere of science with his numerous inventions. He had to dropout from his educational institution adhering to financial constraints, which was caused due to his father’s death. However, he had a strong will power which helped him resume his studies after a hiatus of a few years. His return to studies ushered in his scientific career and ever since then he was involved in various experimental works. He had been a brilliant student and his passion towards science helped him conduct successful experiments and invent useful devices. He did not want his hard work to go futile, so he safeguarded all his important inventions with patents. Pupin, like most other scientists, thought ahead of times and understood the needs of the masses. This made him come up with inventions which were meant to improve the general standard of living. He was a Serbian at heart and also helped the Serbs residing in the United States in the best possible ways. He even played the role of a diplomat and also helped improve relations between nations. His inventions were important and when their patented rights were bought, Pupin became a wealthy man. This also helped him in providing aids to the needy