Kamini Kaushal and Dilip Kumar were in relationship after the death of her older sister she choose to marry her much older husband over Dilip Kumar for the sake of her daughters.as shown in film Mala Sinha marries much older Ashok Kumar over Sunl Dutt after older sister Nirupa Roy passes away.
BR Chopra offered Ashok Kumar' s role to Shammi Kapoor.Shammi Kapoor declined it because he said it was miscasting. He said the audience would not believe the heroine cheating on a husband as good looking as Shammi Kapoor for Sunil Dutt.
based on life of actress Kamini Kaushal who married her late sister husband B.S Sood.
Sunil Dutt son Sanjay Dutt Film have the Same title name Gumrah released after 30 years of this film featuring Sanjay Dutt & Sridevi
"Why Fight Each other" By Ravi B was a cover version of "In Hawaon Mein".