During the shooting of the song Love In Tokyo Joy Mukherjee had to lift Asha Parekh and accidentally dropped her which hurt her back and she was in pain for few days.
The success of the film made Joy Mukherjee direct and produce Love In Bombay.But this film released in 2013 due to some production issues thou it was complete in 1971.
After ziddi, pramod chakravorboty was again to take s.d.burman as the music composer for love in tokyo but he had to take shanker jaikishan because of s.d health problems. When the unit left for tokyo all the songs were already recorded except the tittle song as mohd rafi had gone abroad. Pramod decided they should leave for tokyo and when mohd rafi comes back will record the song and the tape would be sent to tokyo and pramod will shoot the song, meanwhile pramod shot some airiel scenes of tokyo from helicopter for this song. Mohd rafi came back 2 weeks late and pramod shot all the required scenes so the unit was idle waiting for the song. When mohd rafi reached mumbai, without going home he directly hurriedly went to record the song and was very excited thats why it can be heard the song mohd rafi sang fast. The tape on same day was sent to tokyo and the shooting of the song was completed fast. When the song starts joy mukherjee crosses the zebra cross and carrying asha parekh and could not hold asha slips and falls down on the street. In the film this scene is there. Love in Tokyo is the first film shot in Tokyo, Japan.
Tum Dil Ki Dhadkan" was quite similar to the one of "Mujhe Tum Mil Gaye Humdum" form LOVE IN TOKYO.
Pramod Chakraborty had shot all the songs for the film before leaving for Tokyo schedule accept title song as Mohammad Rafi was out of the country.Pramod Chakraborty decided to record the song later once Mohammad Rafi comes and the tape will be sent to Tokyo.Pramod Chakraborty took most of the aerial shots and unit was waiting for the tape to arrive.Mohammad Rafi returned two weeks later and from the Mumbai airport straight away went to recording studio it's said he was eager to go home to be with his family so he recorded the song at fast pace.