Filmmaker Ram Gopal Varma unveiled the trail er of his upcoming film, Veerappan, which follows Asia`s largest manhunt ever to capture sandalwood smuggler and bandit K.  Veerappan. The National Award-winning director who has been patiently waiting to re-unite with the Big B couldn`t have been happier. Apart from the hit `Sarkar` franchise, the actor-director have also worked together in `Darna Zaroori Hai,` `Nishabdh,` Ram Gopal Varma `Ki Aag,` `Rann` and `Department`.On April 7, on RGV`s 54th birthday, Bachchan had visited the filmmaker`s new office in Versova, and talked about `Sarkar 3`."Modelled on the life of late politician Bal Thackeray, the 2005 film had followed Bachchan in a Godfathersque avatar, as Subhash `Sarkar` Nagre, with Abhishek Bachchan playing his son, Shankar. After a three-year-break, they were back with a sequel, with Aishwarya Rai Bachchan playing Anita Rajan. While Sr. Bachchan was tight-lipped about the third instalment to his thriller-franchise, his director was excited to reveal that he is ready to roll with it, eight years after` Sarkar Raj`, and is gearing up to shoot in London and Mumbai.  The writer-director further informed that neither of the Bachchans from `Sarkar` and `Sarkar Raj` will be back in Part 3.