Mood: The mood of the video appears to be upbeat and lively, with a focus on romance and music. The images of couples embracing and a woman dancing suggest a sense of joy and celebration. The overall theme seems to be a collection of popular Bollywood songs from 2019, likely intended to entertain and engage viewers.

Environment: The setting of the video appears to be a mix of different environments, including a black and white film-like setting, a colorful party or club setting, and a more intimate, romantic setting. The images suggest a urban, glamorous atmosphere, possibly in a Indian city or a luxurious setting.