The two brothers, Vinod Shah and Harish Shah always Produced Films with Other Directors, like Dulal Guha, Mohan Seghal, Ravikant Nagaich, Ramsay Bros and Others. One day writer Sachin Bhowmic narrated a story to the Shah Brothers and they were both were impressrd and they decided to Produce The film and find suitable Director. They had told Filmaker Mohan Saigal about it, Mohan Saigal advised Harish Shah to direct the fim himself as he was good at it.
Sanjeev Kumar was signed for the villains role but passed away. Danny was signed to replace him.
Vijayta Pandit got married during the making of the film. The producers made her sign a contract with a clause that she would not get pregnant. If she did and missed work, she would pay for all money lost due to the delay.
There was a shelved movie, Usha Productions "Zalzala"(1974). Starring Shammi Kapoor, Asha Parekh,Vinod Khanna, Neetu Singh, Music by Sonik - Omi, Produced by K.G. Bhatt, Directed by Shantilal Soni.
When Harish Shah first heard the script in 1978, he had planned to sign Feroz Khan and Sanjeev Kumar.