Mood: The mood of the video appears to be light-hearted and romantic, with a hint of playfulness. The theme seems to revolve around relationships, love, and possibly second chances, as suggested by the title 'Phir Se...' which translates to 'Again' or 'Once More' in English.

Environment: The setting of the video seems to be an urban, possibly Western, cityscape with modern architecture, as indicated by the presence of a large window with decorative lights in the background. The couple is sitting on a bench, suggesting a casual, outdoor setting.