[1] Professor Ramakant Khurana, an eccentric scientist, discovers a formula to generate electricity from sunlight.
This discovery makes him very popular, and his formula very much in demand, while local businessman, Mr. Mehta, feels threatened: this may means losses and eventual bankruptcy.
Mehta and his associate, Jeevan, who is also his daughter, Asha's sweetheart, conceive a plan to get Asha married to Dr. Khurana's nephew, Kailash Gupta; inherit part of the estate as well as the business along with the formula; and thereby eliminate their potential bankruptcy.
The person turns out to be Jeevan, who now blackmails Asha with some illicit photographs he took of her in past without her knowledge.
"Pal Pal Dil Ke Paas Tum Rehti Ho" sung by Kishore Kumar was recreated by Abhijit Vaghani in the 2016 film Wajah Tum Ho, and its title inspired a 2019 movie of the same name.