Mood: The mood of the video appears to be romantic and melancholic, with a sense of longing. The theme seems to revolve around love and heartbreak, as suggested by the title 'Doob Gaye' which translates to 'drowned' or 'sunk'. The overall emotion conveyed is one of nostalgia and yearning.

Environment: The setting of the video seems to be outdoors, possibly a scenic hill station or a countryside location, given the hazy background and the couple's casual attire. The environment appears serene and peaceful, which contrasts with the emotional tone of the title and the music.