Actress Shruti Hassan is currently working for the film “S-3” which is going to be the sequel of the movie “Singham”. She has been casted against the renowned actor Surya as the female lead in the film which is being directed by Hari Gopala Krishnan. The talkie of the film has been completed recently and the unit is currently heading to London to shoot a romantic song. The makers of the film are planning to start the post production works in the month of October and are planning to release the movie in the month of December.