Kadal is a film which has Karthik’s son Gowtham and Radha’s daughter Thulasi in the lead role. Both of them acted boldly in a kissing sequence in this film.
When Radha and Karthik were introduced by Bharathiraja in the film Alaigal Oyivathillai, there was a sequence where both of them will be covered with flowers without wearing any dress. Manirathnam wanted to have a kissing sequence in Kadal.
Initially Thulasi was little reluctant to act in this scene. She was also feeling shy when she was surrounded with crew members. Manirathnam sent all the crew members out and shot this kissing sequence. This kissing sequence which will feature in the film for ten seconds was shot for four hours. This lip locking sequence was shot by Manirathnam in Hollywood style. This sequence has featured in the trailer of this film.