Mood: The mood of the video appears to be energetic and lively, with a sense of romance and celebration. The theme seems to revolve around a remix song from a Bollywood movie, likely focusing on dance and music. The emotions conveyed are excitement and joy, typical of a dance remix.

Environment: The setting of the video seems to be a vibrant and crowded nightclub or party scene, likely in a metropolitan city like Mumbai, given the reference to 'Once Upon A Time in Mumbai Dobaara'. The environment is lively with flashing lights and a dance floor, suggesting a high-energy atmosphere.