Kanithan (Vishal) says that the death causing lightening strike must have been an artificial, man-made lightening strike because in a real lightning strike, the light appears first but the sound is heard after a delay. However in reality, even during a real lightning strike, if the observer is standing close to the lightning (like the distance at which Simran stands), the light and sound will surely be observed simultaneously.
One of the companion of Kaniyan (Vishal) tells him that the bullet (mentioned as 9mm) was fired from either Glock 19 or Glock 20 pistol. But, the Glock 20 pistol actually fires 10mm bullet.
At around 1 hour into the movie , the villain uses a electric chainsaw to cut a dead body , but the audio we hear is of a petrol operated chainsaw.
A person's height cannot be determined accurately by knowing his/her foot size, like Kanithan (Vishal) does in the movie.
In an accident scene, the alarm from the BMW sedan can be audible.
a boy comes to Kaniyan (Vishal), asking him to find the killer of his dog, which is actually a German Spitz. But, the boy says that his dog is of Pomeranian breed.