Ram Gopal Varma’s “Sarkar 3”, featuring megastar Amitabh Bachchan, will now release on April 7 instead of March 17. The change in release date was announced in a statement on Tuesday. Presented by Eros International and produced by Allumbra Entertainment, Wave Cinemas and AB Corp, “Sarkar 3” is the third film in Varma’s “Sarkar” series. “Sarkar”,…