Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The theme seems to revolve around heartbreak or separation, as suggested by the title 'Tum Jo Gaye' which translates to 'You Have Left'. The emotion conveyed is one of sadness and possibly nostalgia.

Environment: The setting of the video seems to be inside a vehicle, likely a car, given the seatbelt and the interior visible in the background. The lighting suggests that it could be daytime, with sunlight streaming in, possibly indicating a reflective or contemplative moment.