Mood: The mood of the video appears to be calm, serene, and romantic, with a hint of playfulness. The theme seems to revolve around love, relationships, or a personal connection, as suggested by the title 'Meri Zindagi Hai Tu' which translates to 'You Are My Life'. The overall emotion conveyed is one of warmth and intimacy.

Environment: The environment or setting of the video is likely to be a modern, stylish, and possibly indoor location, given the bright and vibrant color scheme, particularly the dominant yellow and green hues. The setting may feature trendy decor, and the lighting could be soft and warm, creating a cozy ambiance.