Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The theme seems to revolve around heartbreak, love, or separation, as hinted by the lyrics 'Tu Mujh Se Nikalta Nahin...' which translates to 'You don't leave me...' The overall emotion conveyed is one of yearning and desperation.

Environment: The setting of the video seems to be a dimly lit stage or a performance venue, likely in a city, given the title 'Mumbai City'. The background is blurred, but it appears to have a cityscape with bright lights and a possible highway or road, contributing to an urban, nightlife ambiance.