Murli Manohar Khanna was the nephew of the Industrialist Ratan Khanna.
He and his wife Maya Devi from the exterior were good and loyal but their main motive was to loot their uncle Ratan Khanna and were making a scheme, and one day very cunningly killed him in such a way that nobody ever doubted them. But Murli Manohar and his wife were in for a big surprise when they came to know that Ratan Khanna had made a will of his property not on his only son and their children Ram but on Ram's wife and their children's name and till his son grew big and mature enough the power of attorney was given to their Diwan.
Now Murli Manohar and his wife had only one alternative to get the property and that is to wait until Ram grew up and to get him married to such a girl who would dance on the time of Murli Manohar and his wife Maya Devi.
And when Ram grew up as a handsome young man and completed his studies from America and returned they sent a girl by the name of Mona to lure Ram but nobody can change one's destiny as it is, Mona unknowingly mistook someone else for Ram and started fooling him. And here Ram gets married to a nice girl by the name of Mamta and brings her home as time goes by Mamta becomes a mother and gives birth to a beautiful baby boy.
Now to get the property of Khanna Industries these monsters have only one way left and that is to kill Mamta and their innocent baby and with the help of an ace murderer Manohar Khanna and his wife Maya Devi get Mamta killed, but even after her death Mamta's soul is restless for her son and she tries to save him from these cruel people, though all this a great help is her loyal dog Dobby.
(From the official press booklets)