A group of boys and girls, all students of Biology, sets out on a botanical research to a far off location. The boys are headed by stubborn professor, a confirmed bachelor and woman-hater.
Leading the girls' group is a sharp-tongued, short-tempered lady principal who hates men.
As luck would have it, they are all housed in the same Dak Bungalow which is on the outskirts of a village. Despite strict vigilance on both the sides, the teenagers bump into each other leading to clashes. But each clash results in a clash of smiles with the boys and girls falling for each other head over heels.
One day, while researching, the man-hating lady principal fines a snake near her feet. Out of sheer fright, she clings to the bachelor-professor and like the touch of Venus, Cupid has a snap.
During their stay in the village, the students come to know about the outrageous deeds of a local zamindar who had devoured the land and a dilapidated old temple. The villagers had started agitating against the fraudulent possession of the temple. But a corrupt official was sheilding the zamindar. The students take a cudgels on behalf of the villagers and bring a new awakening among them.
The Government officer admonishes the boys by warning them that the students should not participate in politics. But he is duly snubbed by the professor who tells them: "As and when it suits politicians, they drag the students in politics and when the wrath of the students turns upon them, they conveniently advise them to keep off politics".
The village is also afflicted with the mysterious murders of innocent people at the hands of a "ghost". The students refuse to swallow the ghost story and resolve to unravel the mystery. Bravely they unmask the self-styled ghost and expose the scheming zamindar to the holt.
In the end "Jangal Mein Mangal" poses a question that if all our students spread out to every nook and cornder of the country and fight corruption, mal-administration and law-breakers, it would not be difficult to eradicate the evils of society in a day.
[From the official press booklet]