The film opens in India. It is the early 20th century, when India remains part of the British empire. The opening sequence shows a group of British soldiers plundering an Indian fort and taking its riches by air to England. They are stopped by the valiant Raja Azad Singh (Dara Singh). Raja Azad Singh is immensely strong, and manages to lasso the light aircraft, subdue several English soldiers and recover the stolen jewels. Around this time, Raja Azad Singh's wife Rani Durga (Nirupa Roy) gives birth to a baby boy. The Raja carves the word mard (man, intending to convey strength and bravery) into the newborn's chest, noting proudly that the baby is smiling throughout, and can apparently feel no pain. (His words, mard ko dard nahin hota, meaning "a true man feels no pain", is a tag line throughout the movie.) The British commission conducts an investigation, led by a sympathetic and liberal Englishwoman, Lady Helena; the investigation uncovers the atrocities of the English troops and results in several officers being officially reprimanded. Lady Helena is a close confidant of Raja Azad Singh, and is generally supportive of the Raja and of India becoming independent.Wikipedia