Mood: The mood of the video appears to be melancholic and introspective, with a theme of heartbreak or betrayal, as suggested by the title 'Bewafai Ki Kasam' which translates to 'Promise of Betrayal'. The overall emotion conveyed is one of longing and possibly regret.

Environment: The setting of the video seems to be a studio or a dimly lit room with a musical setup, possibly a recording studio given the presence of a microphone. The background is dark with shades of blue, indicating a somber or reflective atmosphere.