Mood: The mood of the video appears to be romantic and light-hearted, with a sense of playfulness. The presence of a heart symbol and the title 'Dil Ka Kya Kasoor' which translates to 'What's wrong with my heart', suggests that the video is a romantic comedy or a drama with a strong emotional focus. The facial expressions of the actors, particularly the smiles, add to the light-hearted and cheerful tone.

Environment: The setting of the video is not clearly defined, but based on the attire and makeup of the actors, it appears to be a urban or modern setting, possibly in a city or a upscale location. The background is blurred, but it seems to be a neutral or pastel-colored setting, which adds to the light-hearted and romantic mood.