Mood: The mood of the video appears to be romantic and upbeat, with a sense of youthful energy. The theme seems to revolve around love and relationships, given the title 'Badtameez Dil' which translates to 'mischievous heart'. The overall emotion conveyed is lighthearted and carefree.

Environment: The setting of the video seems to be an urban environment, possibly in a city like London, given the iconic clock tower visible in the background. The cityscape with buildings and a bridge suggests a modern, cosmopolitan setting. The presence of a man and woman in casual, fashionable attire adds to the urban, contemporary vibe.