Mood: The mood of the video appears to be light-hearted and playful, with a hint of romance. The man's expression and the pink shirt he's wearing give off a carefree and casual vibe. The theme seems to revolve around love or infatuation, as suggested by the title 'Tera Hua Main Jab Se' which roughly translates to 'I've been yours since then'.

Environment: The setting of the video seems to be outdoors, possibly in a rural or semi-urban area. The blue building in the background and the sandy ground suggest a relaxed, informal environment. The presence of people in the background adds to the casual atmosphere.