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 loss, given the title 'Kuch To Hai' which translates to 'Something is there' or 'Something exists', often used in the context of unexplained feelings or presence of a past love. The overall emotion conveyed is one of yearning and nostalgia.

Environment: The setting seems to be an urban environment, possibly at night, given the blurred background lights that resemble city lights. There is a hint of rain or wet conditions, as suggested by the woman in the background standing under what appears to be a shelter or awning, covered in a transparent raincoat or plastic sheet. The exact setting is not clearly defined but suggests a cityscape during or after rainfall.