Mood: The mood of the video appears to be romantic and intimate, with a sense of longing. The theme seems to revolve around love and togetherness, as suggested by the title 'Tu Saath Hai Toh'. The emotion conveyed is one of closeness and affection between the two leads.

Environment: The setting appears to be an urban or cityscape, possibly in a European or Western setting, given the architecture of the buildings in the background. The presence of a red car adds to the urban feel. The overall setting seems modern and sleek.