The birthday of actress Nayanthara was celebrated in the sets of 24 AM STUDIOS untitled production number 2 today. A simple but elegant event was organised by the producer R D Raja in the location to honour Nayanthara who is paired opposite Sivakarthikeyan in this untitled film directed by Mohan Raja. The actress was taken by surprise over the arrangements and expressed her gratitude to the producer for his gesture. She cut the cake in the presence of the entire unit and kept posing for photographs with all the technicians of the film with tireless enthusiasm.