Create an enchanting instrumental track in the key of A minor for the song "Deewane Hum Nahi Hote Deewani Raat Aati Hai" original version. Infuse the composition with a fusion of Bollywood and jazz influences, incorporating a mesmerizing piano melody as the centerpiece. The track should exude a nostalgic and romantic mood, with a touch of melancholy. Emphasize the use of arpeggios and delicate chord progressions to create a dreamy and introspective vibe, while maintaining a steady tempo throughout.