Mood: The mood of the video appears to be lively and celebratory, with a focus on music and love. The theme seems to be a tribute to Bollywood music, given the title 'World Music Day Bollywood Special'. The overall emotion evoked is one of joy and festivity, with a sense of nostalgia for classic Bollywood songs.

Environment: The setting of the video seems to be a modern, urban environment, possibly in India, given the context of Bollywood music. The image features a collage of young people in casual clothing, with a mix of romantic and playful moments. The background is dark, with a subtle gradient effect, which suggests a nighttime setting or a studio setting with creative lighting.