Listen to Fauji Ka Farz online. Fauji Ka Farz is a Haryanvi language song and is sung by Mamta Chaudhary and Sannu Doi. Fauji Ka Farz, from the album Fauji Ka Farz, was released in the year 2019. The duration of the song is 3:14. Download Haryanvi songs online from JioSaavn.