Mood: The mood of the video appears to be romantic and upbeat, with a sense of carefree joy. The theme seems to revolve around love and relationships, with the title 'Sun le Saathiya' suggesting a playful and affectionate tone. The overall emotion conveyed is lighthearted and cheerful.

Environment: The setting of the video seems to be an urban or cityscape, with a building visible in the background. The sky above is cloudy, but the overall atmosphere suggests a bright and sunny day. The couple's casual and relaxed demeanor implies a daytime setting, possibly during a leisurely outing or a romantic stroll.