A poor but big-hearted man takes orphans into his home. After discovering his scientist father's invisibility device, he rises to the occasion and fights to save his children and all of India from the clutches of a megalomaniac.
Raja (Khanna) discovers that his face is similar to that of Dr. Shekhar, one of the top earning doctors of Bombay. He somehow manages to take his place, but discovers that even Dr. Shekhar has problems of his own.