is named Badshah by the gang, are however chased by the police and they land in Laxman Prasad's house to whom they introduce themselves as factory workers, to cheat him into joining their nefarious plan of stealing the lead boxes. The story then leads to how Laxman Prasad is wrongly framed for the theft of the boxes by Rocky and Badshah and the subsequent murder of Raj Mehra. Kusum (Zaheera), who is the only daughter of Raj Mehra is pursued by Ram Prasad so that he can steal the lead boxes, but they fall in love. Laxman Prasad is saved from the police by Rekha (Parveen Babi), who is a fellow worker and his love interest. As the plot gets thicker Ram Prasad also reveals his true identity to Laxman Prasad, but not before a fight in which they discover they are brothers by the tattoos on their hands. Harnam, who has now become a CBI Officer, poses as a sea pirate and joins the gang of Heeralal to transport the uranium in the stolen lead boxes, in a ship. Kaushalya and Laxman Prasad, who had previously reunited when Laxman Prasad was escaping from the police on false charges, are however held hostage on the same ship. After a scuffle on the high seas in the ship, the family of Harnam Prasad is united by the tattoos of their names on their hands and symbol of Om. Mac (Pradeep Kumar) is another gangster in league with international criminals and Heeralal, out to misuse uranium against India. The movie ends with the family of Harnam Prasad vanquishing the entire gang of smugglers, being true to their legacy of honesty towards their country, and matrimony of the three sons to their love interests. Cast Rajendra Kumar as CID Inspector Ram Prasad / Rocky Shashi Kapoor as Laxman Prasad Rakesh Roshan as Bharat Prasad / Badshah Parveen Babi as Rekha Zaheera as Kusum Asha Sachdev as Poonam Madan Puri as Heeralal Ajit as Custom Officer / CBI Officer Harnam Prasad Kamini Kaushal as Kaushalya Prasad Pradeep Kumar as Mac Dulari (actress) Raj Mehra as Kusam's Father Birbal Preeti Ganguli Krishan Dhawan The song "Sathie Mere Sathi Rut Aa Tee Jaate", by Mohd. Rafi, Mukesh and Lata Mangeshkar was the most popular among the songs. The playback singers for the movie were Mohd. Rafi, Kishore Kumar, Mukesh, Manhar, Mahendra Kapoor and Anuradha Paudwal, The