Mood: The mood of the video appears to be romantic and nostalgic, with a hint of melancholy. The theme seems to revolve around love and longing, as suggested by the title 'Dil Mein Ho Tum'. The overall emotion evoked is a sentimental and introspective one, typical of a slow and soulful song.

Environment: The setting of the video appears to be a waterfront or a pier, with a serene and peaceful atmosphere. The sky is a mix of blue and pink hues, suggesting a sunset or twilight setting. The presence of a streetlight and a railing in the background adds to the ambiance of a quiet, contemplative space.