Director Arivazhagan (of Eeram fame) has found his heroine to be paired opposite Nakul in his forthcoming Vallinam. Interestingly, he had initially cast Bindu Madhavi as the female lead. However, after a couple of days shoot, the unit wasnt happy with the pairing and so, the actress was dropped from the film. Arivazhagan, who was scouting for a suitable leading lady, seems to have finally found his heroine in a debutante. 19 year old Mridhula has now been cast as the female lead.Mridhula hails from Kumbakonam and can speak fluently in Tamil. She has been learning Bharatanatyam from the age of three and is quite expressive on the sets, says Arivazhagan, whos planning to reveal the first look of the film in a month.