Mood: The mood of the video appears to be dark, intense, and dramatic, suggesting a theme of villainy, power struggle, or revenge. The use of black and white tones and the serious expressions of the individuals in the image contribute to this somber atmosphere. The title 'Galliyan Returns' and 'Ek Villain Returns' implies a return of a villain or an antagonist, which further supports this theme.

Environment: The environment or setting of the video seems to be a dark and possibly urban or industrial backdrop, given the presence of a microphone and the overall aesthetic of the image. The setting appears to be a studio or a dimly lit indoor location, which complements the dark and intense mood of the video.