Composed by A. R. Rahman, the song is set in Bilahari Ragam and is sung by Shreya Ghoshal and Haricharan, with lyrics penned by Madhan Karky.

The Hindi version of the song "Tu Chale", sung by Arijit Singh and Ghoshal is written by Irshad Kamil while the Telugu version of the song "Poolane Kunukeyamantaa" was sung by Haricharan and Ghoshal with lyrics penned by Ananta Sriram.

[4] The song is sung by Haricharan and Shreya Ghoshal while the lyrics is penned by Madhan Karky.

[5] Scenes in the song were shot in scenic locales— Red Seabeach in Panjin and on Li river in Guilin.

[7] The song is composed using instruments like Harp and Haiku with programmed beats and blues type guitar riff.

He praised the lyrics by Madhan Karky and vocals by the lead singers: "The way Shreya Ghoshal's humming has been used in the first interlude laced with classical improvisations is top-notch".

[14] Behindwoods Review Board commented: "Haricharan's crystal clear voice, Shreya's Hindustani driven singing lead to a chart-buster, here".