Raj Kapoor wanted to make the film with Rishi Kapoor and a 14 year old Neetu Singh after Mera Naam Joker. After the film flopped, Raj Kapoor was not sure if the audience would accept Ram Tere Ganga Malin. So he launched a more safer Bobby.
In the year 1959, during the making of Jis Desh Mein Ganga Behti hai, Raj Kapoor got the story idea of.Ram Teri Ganga Maili and Raj Kapoor made the film after about 25 years. After Prem Rog, Raj Kapoor and his son Randhir Kapoor had attended a function and heard, music composer Ravindra Jain was singing a bhajan. ek radha ek meera. Raj Kapoor was very impressed with Ravindra Jain and he told Ravindra Jain that he will be the music composer of next R.K. film and that bhajan will also be in the film and Randhir Kapoor will be the producer of the film. Some 10 years before RTGM in 1975, Ravindra Jain had composed music for an Raj Kapoor starer Do Jasoos. There was big controvesy at that time as Raj Kapoor had signed Ravindra Jain, as composer instead of Laxmikant-Pyarelal. Then in 1983 finally Raj Kapoor started shooting the film with Rajiv Kapoor, Divya Rana, Sushma Seth, Raza Murad, Kulbhushan, Geeta. Before Mandakini, was discovered. Dimple was also screentested for this film. Randhir Kapoor was made the official producer for this film. The hit song. sun sahiba sun. Hasrat Jaipuri wrote the song and Shanker-Jaikishan had composed the tune for RK's Ajanta which was to be made in 1950's during Awaara & Shree 420 times, but Ajaanta was shelved. Raj kapoor after 30 years got it recorded for RTGM and the song became super hit.
After Ram Teri Ganga Maili, Raj Kapoor thought of starting. his 20 years dream film, the. K.A.Abbas written Heena. But then he thought instead of Heena, he should make Ghungat Ke Phat Khol Do, then again he wanted to start Heena with Rajiv Kapoor and a new girl and launched the film in 1986 with recording of 3 songs But Raj Kapoor was not getting the required permission to shoot in Pakistan, so the showman Raj Kapoor shelved Heena. After 3 years Randhir Kapoor revived Heena and was released in 1990s.
The Showman Raj Kapoor shot two separate endings for Ram Teri Ganga Maili, an happy ending and an sad ending, he decided to keep the happy ending. For Bobby had also shot two different endings and when the film was complete he had decided which ending should he keep. Sometimes for his films he always shot twice than later decides which one to keep.
Raj Kapoor wasnot keeping well and he had gone to U.S.A. for treatment. But after the super success of Ram Teri Ganga Maili, Raj Kapoor was very happy, the success of the film made him very well and healthy. He was planning his next film. His friend and writer K.A.Abbas told the showman that now the time has come and he should make Heena now. So The Showman started Heena.