
After spending hours together, they become friends and exchange contact details.

On the plane, he encounters a playful, flirtatious girl named Deepika ( Tanisha), whom he sits next to during the flight. Accepting a request from his manager to go on a six-month business trip to Melbourne, he bids farewell to his friends Raju ( Raju Sundaram) and Sathish ( Sathish Krishnan). Karthik is then shown as a civil engineer in Chennai, still playful and fun-loving. She walks off, ending their relationship. There, he is criticized by her for his antics with other women and his lack of passion for their love. Karthik ( Vinay) walks off, disturbed, to his girlfriend Jhansi's ( Sadha) office. The credits end as a boy, after being rejected by his girlfriend, is accidentally hit by a passing car and dies. After a mixture of answers, they cease their questions, and the credits roll. The film opens with a man ( Aravind Akash) and woman interviewing civilians on love and the opposite sex. The film received positive reviews and became a blockbuster hit at box office. The film opened to Indian audiences after several delays, on 14 April 2007, coinciding with the Tamil New Year. The events that follow and who the man eventually gets together with form the crux of the story. This other woman's boss turns out to be the man's former lover. However, the man changes his ways and on a business trip to Melbourne, he encounters another woman.

Despite being in a relationship, the latter walks out on the former due to his antics with other women. The film revolves around the aftermath of a relationship between a careless man and a serious woman. Raju Sundaram also worked as a choreographer in the film. Directed and co-written by Jeeva and produced by Oscar Ravichandran, it stars Vinay, Sadha and Tanisha Mukherjee in lead roles Srinath, Raju Sundaram and Sathish Krishnan in supporting roles and Lekha Washington, Aravind Akash, Uma Padmanabhan, and Vasundhara Kashyap in cameo roles.

It was later dubbed into the Telugu language as Neevalle Neevalle. Unnale Unnale (English: Because of You) is a 2007 Indian Tamil-language romantic musical film.
