Listen to Rag Maru Bihag online. Rag Maru Bihag is a Hindustani language song and is sung by Ustad Faiyaz Khan Sahib. Rag Maru Bihag, from the album Heritage Faiyaz Khan, was released in the year 1990. The duration of the song is 14:33. Download Hindustani songs online from JioSaavn.