During The Filming Of Naya Daur, The Film Was Dogged By A Highly Controversial & Widely Publicised Court Case. Initially, Actress Madhubala Was Cast As The Female Lead.
An Advance Payment Was Given To Her & Shooting Went On Smoothly For 15 Days. Chopra, The Director, Wanted The Unit To Travel To Bhopal For An Extended Outdoor schedule.
But Ataullah Khan, Madhubala's Father, Objected To This & Claimed That The Bhopal Schedule Was A Ruse To Give Dilip Kumar The Opportunity To Romance His Daughter. Finally, Chopra Used Madhubala To Seek A Refund Of The Advance She Had Received From Him.
He Then Replaced Her With The South Indian Actress Vijay Who Had Earlier Acted With Dilip Kumar In Devdas. Madhubala Supported Her Father Despite Her Commitment To Dilip Kumar, Who Then Testified In Favour Of Chopra.
Madhubala & Her Father Lost The Case Amid Much Negative Publicity. However, Once The Film Released & Became A Hit, Chopra Dropped His Charges To Save Madhubala From The Humiliation Of What Could Have Been A Prison Sentence.