Mood: The mood of the video appears to be romantic and intimate, with a sense of longing or questioning. The title 'Kya Hua' which translates to 'What Happened', suggests that the video may explore themes of love, heartbreak, or confusion. The overall emotion conveyed is one of tender melancholy.

Environment: The setting of the video seems to be outdoors, possibly during the daytime or early evening, given the soft, warm lighting. The background is blurred, but it appears to be a colorful and possibly festive environment, which contrasts with the introspective mood of the couple.