Mood: The mood of the video seems to be vibrant and lively, reflecting the colorful and artistic background. The theme appears to be related to travel, exploration, or cultural experiences in Kolkata. The overall emotion evoked is one of excitement and curiosity.

Environment: The setting of the video is likely to be Kolkata, given the hashtag '#kolkata diaries'. The environment seems to be urban, with hints of cultural and historical landmarks in the background. The presence of a bridge, a tram, and a vintage car suggests a blend of traditional and modern elements.