Mood: The mood of the video appears to be energetic and action-packed, with a sense of intensity and urgency. The theme seems to revolve around fight and action, with the title 'Fighter' and the tagline 'Sher Khul Gaye' suggesting a thrilling and suspenseful narrative.

Environment: The environment appears to be a dark and crowded nightclub or party setting, with people milling about in the background. The dim lighting and warm color tones create a sense of excitement and tension.