Mood: The mood of the video appears to be light-hearted and romantic, with a sense of adventure and travel. The theme seems to revolve around relationships, love, and exploration, as hinted by the title 'Single V Salma' and the collage of people in different settings. The overall emotion evoked is upbeat and carefree.

Environment: The setting of the video seems to be a mix of urban and travel environments. The presence of a globe, a clock tower, and a Ferris wheel suggests a city or a tourist destination. The red suitcase and the bus bench imply travel or a journey. The video may feature scenes from a city like Lucknow, given the sign in the background.