Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The theme seems to revolve around nostalgia, regret, and possibly a hint of humor. The title 'Mere Achche Din Kab Ayenge' translates to 'When Will My Good Days Come', which suggests a yearning for a better past or a brighter future.

Environment: The setting appears to be an urban, possibly rundown or graffiti-covered wall, with the man sitting on a ledge or a car. The background is a mix of blue and green hues, which adds to the melancholic atmosphere. The overall setting seems to be a gritty, real-world environment, possibly a city street or alleyway.