In case of exam time someone mistakenly came in our room and capture in camera then the exam monitor cancel our exam or give the warning

Dear student,

In the event that someone mistakenly enters an examination hall and gets captured in the camera, in most liklihood, the exam will be cancelled. But that depends upon the nature of exam underway. If its a major exam like JEE or NEET etc., then the exam will definitely be cancelled. But if its an internal exam like a semester exam, then in all liklihood, a warning will be issued.