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 or attraction, given the title 'Karde Haan' which translates to 'Say Yes' in English. The overall emotion conveyed is one of excitement and playfulness.

Environment: The setting of the video seems to be a stylized, indoor or studio setting with a dark blue background and scattered light spots, giving it a modern and trendy feel. The focus is on the two main characters, suggesting that the video could be a music video or a promotional video for a song.