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 heartache, with the title 'Heartless' and the phrase 'Main Dhoondne Ko Zamaane Mein' suggesting a search for love or a lost connection.

Environment: The environment or setting of the video is not explicitly shown, but based on the color palette and the overall aesthetic, it seems to be a modern, urban setting with a dark and moody tone. The presence of water in the background suggests that the video may feature scenes shot near a body of water or in a rainy setting.