The teaser of Sanjay Dutt's upcoming film 'Prasthanam' is out. The film which also features Jackie Shroff, Manisha Koirala, Chunkey Panday and Ali Fazal, sees Sanjay donning the role of a politician. 'Prasthanam' is the official Hindi remake of Telugu film of the same name, and is all set to hit the theatres on September 20.