Rajesh Khanna's daughter, Baby Twinkle Khanna sounded the clapper board, Mrs. Yash Chopra directed the first shot, Mrs. Mohan Kumar broke the coconut and Mrs. J. Om Prakash switched on the camera. The reason for an "all ladies" show was attributed to the fact that since the film is full of ladies appeal, it was the right to start the film that way.
Shashi Kapoor's role was first offered to Sunil Dutt then Sanjeev Kumar.
This film was adapted from the Pakistani film "Mehrbani" (1982) directed by Pervez Malik. Another film featuring Rajesh Khanna and Tina Munim, "Adhikar" (1986), was also based on a Pervez Malik film, "Qurbani" (1981).
Kishore Kumar always asked for his payment in advance before he rendered a song. But he made an exception this film. Neither did he demand his payment in advance, nor did he ask for it even after the song was recorded. When a shocked Rajesh Khanna asked him why, Kishore Kumar's reply was that he had got a fresh lease of life as a singer with Aradhana (1969) and since this was Rajesh Khanna's first film as producer, he had no right to accept any money.
One night Rajesh Khanna had watched the Pakistani film Meherbaan, he had liked the film very much that he decided to produce the Hindi version and Shakti Samanta, who gave him a big hit, will direct it. Rajesh Khanna was waiting for the morning to come so he can meet Shakti Samanta. In a very early morning Shakti Samanta, dint even wake up, Rajesh was knoking his door, to tell him about the film. Kishore Kumar had already announced that he was to retire and he was completing pending work, Rajesh requested. Kishore to sing for his film and. Kishore agreed and he refused to take money. At that time Rajesh was working in Kishore Kumar's Mamta Ki Chaon Main. As soon as possible the shooting started and then completed, Shakti. Samanta made the film very quicly. Shakti Samanta later said he wanted Rajesh Khanna should play Shashi Kapoor's role and this was the best role and Shashi Kapoor acted very well. After this film Rajesh Khanna was to produced another film and Shakti Samanta as director it. was. tittled Ansoo. based on english film tittled Lace but it was then shelved.