With the onset of the World T20, actor Sushant Singh Rajput unveiled the teaser of his new Bollywood film "M.S. Dhoni - The Untold Story”, a biopic on Indian cricket team captain Mahendra Singh Dhoni.Directed by Neeraj Pandey, the film stars Sushant essaying Dhoni.The link to the 48-second video which shows Sushant working as a ticket collector in Indian Railways.Sharing the link, Sushant tweeted: “The journey of his untold story has begun. Watch the teaser here: http://bit.ly/MSDhoni-Teaser."In the teaser, one can hear Sushant's voiceover as he takes orders from his seniors as a ticket collector, and also can be heard is former Indian cricketer and director for the Indian cricket team Ravi Shastri's commentary during the final of the 2011 World Cup when Dhoni won India its second World Cup.Produced by Fox Star Studios, the film also stars Kiara Advani, Anupam Kher and Herry Tangri.“M.S. Dhoni - The Untold Story” is set to release on September 2.