Mood: The mood of this video appears to be romantic and nostalgic, with a hint of drama. The theme seems to revolve around love, travel, and cultural exchange, as indicated by the title 'Chandni Chowk to China'. The overall emotion evoked is one of classic Bollywood charm and wit.

Environment: The setting appears to be a blend of Indian and Chinese cultural landscapes. The backdrop features traditional Chinese architecture, while the couple's attire and the overall aesthetic suggest a fusion of Eastern and Western influences. The environment seems to be a stylized representation of a journey or travelogue.