It stars Dev Anand, Madhubala in lead roles, along with Mazhar Khan plays the main antagonist.
It is specially noted for its song "Mehfil Mein Jal Uthi Shama" (picturised on Madhubala, sung by Lata Mangeshkar).
A romance blossoms, but the girl's impecunious gambler brother (Yakub) marries her off to King Sangram (Mazhar Khan) and the couple are parted.
When Poonam falls ill, Anand as the doctor is called and their lives are imperiled by the King's suspicious sister leading to a melodramatic denouement.
[1] Despite negative reviews, Nirala was a box-office hit; its success played a crucial role in establishing Madhubala as a leading lady of the time.