Mood: The mood of the video appears to be romantic and nostalgic, with a sense of longing. The theme seems to revolve around love and possibly heartbreak, given the title 'Woh Tho Yahin Hai Lekin' which translates to 'She is here but not here'. The overall emotion conveyed is melancholic and introspective.

Environment: The setting of the video seems to be an outdoor location, possibly a beach or a coastal area, given the presence of a hat and sunglasses on the man. The background is blurred, but it appears to be a warm and sunny day. The environment seems serene and peaceful, which contrasts with the melancholic mood of the video.