Jibin Mathew's screen appearance after three years, and his second consecutive collaboration with Aashish Nair.
Shyam's house shown in the film, is actually Tobby Mathew's house.
The film was shot in 6 days.
In the original draft of the script, Man in Black was not the real villain. The film ended at Man in Black defeating Man in Grey #1. But director Aashish Nair felt unsatisfied, and added the extra twist.
The film was shot in six days. Action scenes where filmed in three days, main conversation scenes in two, and hospital scenes in one day.