Mood: The mood of the video appears to be lively, energetic, and celebratory. The theme seems to revolve around the making of a disco song, likely for a Bollywood film, given the style and the mention of 'Gentleman' in the top left corner. The emotion conveyed is one of excitement and joy, capturing the vibrant essence of disco music and dance.

Environment: The setting of the video seems to be a dance studio or a stage, given the presence of a staircase in the background adorned with lights. The environment appears glamorous and colorful, fitting for a music video or a behind-the-scenes look at a disco-themed song. The presence of multiple dancers and a variety of costumes suggests a professional dance performance or a film shoot.