Vikram Singh (Amjad Khan) is framed for possession of drugs, but claims he was framed by a business associate named Rajan (Sujit Kumar). After release from prison he kills Rajan and frames his former lawyer Amit (Amitabh Bachchan). Amit is forced to go on the run, while his pregnant wife Janki (Waheeda Rehman) gives birth to twin sons Guru and Shankar (Both played by Amitabh Bachchan). Unfortunately, she becomes separated from one of her sons Guru when her son is stolen by a barren couple. With her husband on the run and one son missing, Janki is forced to raise Shankar on her own. Amit thinks his wife Janki is dead so he tries to lead a normal life using the name Rana Ranveer and is living with his adopted daughter Manju (Parveen Babi). But Janki is living in another city with Shankar who has become a police inspector. Guru had been brought up by a barren couple and grows up to be a theatre actor and pursued by Rita (Zeenat Aman). Manju meets and falls in love with Shankar, unaware that he is Rana Ranveer's long lost son. At the end their lives interwine and all are reunited and become a family again.

The movie celebrated golden jubilee (3 shows) in South India and in rest of the India it celebrated silver jubilee (3 shows). When premiered in Sony TV in the year 2009, it earned highest TRP.

• Amitabh Bachchan as Amit/Rana Ranveer, Inspector Shankar & Guru (Triple Role)
• Waheeda Rehman as Janki
• Zeenat Aman as Rita (Guru's love interest)
• Parveen Babi as Manju (Shankar's love interest)
• Ashok Kumar as Rai (Rita's grandfather)
• Amjad Khan as Vikram Singh
• Shakti Kapoor as Prem (Vikram's son)
• Kader Khan as Simon
• Aruna Irani as Tara
• Sujit Kumar as Rajan
• Mukri as Guru's foster father
• Urmila Bhatt as Guru's foster mother