The park bench scene has two camera angles - one from the left and one from the right. Nandhini's handbag is visible on her lap in one angle but is completely missing in the other angle.
In the climax scene, Ravi's drink glass keeps changing position.
In the climax scene, Gautam is wearing a black hand-band. But in a close of of his hand, the hand-band is missing. (The hand in the close-up scene is actually the film director's).
Reflections of the camera and stand are visible in the climax.
The film is supposedly set in Chennai, Tamil Nadu. But in the party scene, the Washington monument (DC, USA), is clearly seen. Also, the Kennedy Center is shown in the picture when the policemen are talking about the Hilton Garden Hotel - implying that the Kennedy Center is the Hilton Garden hotel.