Mood: The mood of the video appears to be festive and celebratory, likely centered around the Diwali festival, given the title 'HAPPY DIWALI REMIX'. The emotion conveyed is joyful and lively, with a mix of excitement and playfulness. The theme seems to revolve around the celebration of Diwali, with a possible focus on music and dance.

Environment: The environment or setting of the video seems to be a modern, urban setting in India, likely during the Diwali celebrations. The presence of a delivery person and the promotional material style suggests a connection to a movie or a promotional campaign for a film or music release.