Mood: The mood of the video appears to be romantic and melancholic, with a hint of sadness. The theme seems to revolve around heartbreak and longing, as indicated by the title 'Tere Naal' which translates to 'With You' in English. The overall emotion conveyed is one of yearning and nostalgia.

Environment: The setting of the video seems to be a dark and intimate space, possibly a room or a studio, given the dark purple background. The focus is on the two lead actors, suggesting a close and personal connection between them.