Mood: The mood of the video appears to be dark and intense, with a sense of mystery and suspense. The theme seems to revolve around obsession, addiction, or infatuation, as suggested by the title 'Zehreela Nasha', which translates to 'Poisonous Addiction'. The overall emotion conveyed is one of turmoil and possibly even danger.

Environment: The setting of the video seems to be an urban environment, possibly a cityscape with buildings in the background. The exact location is not clear, but it appears to be a modern, possibly metropolitan area. The focus, however, is on the characters and their emotions rather than the environment.