"Aayo Re Shubh Din Aayo Re" (or "Shubh Din") is a celebratory 2018 Bollywood song from Parmanu: The Story of Pokhran , composed by Sachin-Jigar and sung by Jyotica Tangri and Keerthi Sagathia. The track celebrates the Pokhran nuclear tests, typically available in a 4.83 MB, 128kbps format. For the full audio, visit the Zee Music Company YouTube Channel . Shubh Din Aayo Aayo Re Various Artists Mp3 song download