The closing track of the real life based documentary movie Sachin: A Billion Dreams is a complete fit on Sachin life, as the last track portrays him as a maharashtrian hero/man (people belongs to maharashtra are called maharashtrian).
The third & final track from the music album of Sachin: A Billion Dreams is called as "Mard Maratha" [English Translation: Mard means man/hero sometimes it is also refers to fearless fighters; Maratha are those people who belongs to maharashtra] and it's a duet single by young A.R. Ameen along with talented female playback singer Anjali Gaikwad.
The music for the song Mard Maratha is composed by A.R. Rahman, while the lyrics for the song been written by Irshad Kamil. The complete audio soundtrack of Mard Maratha was unveiled along with the full music album on May 19th 2017 on various digital stores & services. The song Mard Maratha is available under the record label of Junglee Music.