Bhim Singh (Suresh Oberoi) works as a manager and personal bodyguard to Seth Raja Singh (Kamal Kapoor) and saves him from many murder attempts planned by Raja's step brother, Girdhar Singh. One day Raja Singh appoints Savitri (Waheeda Rehman), Bhim Singh's wife as trustee to their property and guardian to his toddler son Raja Kumar. On the same day, he and Bhim Singh die at the hands of Girdhar Singh. Savitri promises her husband that she would take care of Raja Kumar at any rate. Everyone including Bhim Singh's father Dashrath Singh (Om Prakash) blames Savitri thinking that she killed her husband and employer for money. Savitri hands over young Arjun to Dashrath Singh and settles herself as Raja Kumar's mother to protect him.