Hero didn't come out of parimel azhakar. Delivery of sub-inspector of police should be bit aggressive, authenticate which was missing in many scenes. Appearance alone is not police must be understood by director. All characters made their efforts but director didn't utilize them properly. Climax resembles some Karthi movie where same kind of amateur villains will try to kill hero.
Many logic mistakes example
Nurse asks the criminal whom you are planning to kill, police waiting for you .... (haha)