Hero G.V.Prakash Kumar and heroine Nikki Galrani are to be united in the wedlock and the marriage arrangements are in progress. Two days prior to the ceremony, GVP takes Nikki's car and drives to Pondicherry to celebrate his bachelor's party. When the friends are on their way back to Chennai, the car is stopped by policemen Prakash Raj, Singam Puli and Robo Shankar for checking. On seeing the empty liquor bottles inside the car, Prakash Raj threatens to arrest them and as expected GVP and RJ Balaji run away from that place leaving Balaji's mobile phone behind. Prakash Raj follows them through the mobile.
Meanwhile, GVP gets continuous calls from his fiancee Nikki (who seems to be strict) and his ex-lover Anandhi (who showers affection in her tones). At one stage, GVP gets confused about the choice of his bride. What happens after that and with whom the hero gets united form the crux of the movie.
Hero Prakash Kumar has shown a remarkable improvement in his performance skills and dialogue delivery. Shedding out his hesitation, he has portrayed his character in a free manner. Looking beautiful, Anandhi and Nikki Galrani also go with the flow and attract the attention of the viewers by their neat performance. RJ Balaji makes the audience laugh and fills up the absence of comedian Santhanam who is usually seen in Rajesh films.
Veteran actor Prakash Raj proves his experience in portraying acomedy mixed villian character and stands a big boon for the screen play. Artists Robo Shankar and Singam Puli are supportive to him. Although given a small part, actress Urvashi and Manobala make the audience split in laugh with their comedy. M.S.Baskar and T.Shiva fit well in their father characters and play their respective roles perfect.
Without going for a new formula, director Rajesh has traveled in his regular comedy track but gets the appreciation for an interesting presentation. The first half assures a laughing riot but the second half looks dragging with the inclusion of too many songs. Had this been trimmed, the movie would have turned more interesting.
The songs with GVP's composition have become hit numbers already and they become more enjoyable on the screens with the perfect pictarization. Sakthi Saravanan's camera makes all the scenes beautiful with a special mention given to the chasing scenes.
Summing up Kadavul Irukaan Kumaru proves to be hilarious.