Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The theme seems to revolve around heartbreak, love, or separation, as suggested by the title 'Tum Bin'. The overall emotion conveyed is one of yearning and nostalgia.

Environment: The setting of the video seems to be a dimly lit, cozy indoor space, possibly a bedroom or a lounge area, with a woman sitting on a couch or a bed. The background is blurred, but it appears to have a warm and intimate ambiance.