Filmmaker Ram Gopal Varma dropped a surprise announcement on the occasion of his 57th birthday on Sunday. He announced a new project, which will mark his debut as an actor. \u201cAhem! On the occasion of my birthday today, I am debuting as an actor for the first time in my career ..I wouldn\u2019t mind if u don\u2019t bless me ..Thanks,\u201d tweeted the director. He also shared the first look poster of his acting debut, which has been titled Cobra. According to the poster, the film is a biopic based on \u201cthe most dangerous criminal ever.\u201d Another character description of the subject of the movie claims that \u201cIf he\u2019s arrested, half the police department will be thrown into jail.\u201d It looks like the film will explore a deep nexus between police and a gangster, which will be right up RGV\u2019s alley. \u201cFINALLY .. !! Ram Gopal Varma .. the \u2018SARKAR\u2019 finds his true vocation .. ACTING !! All the best Sircaarrrrr .. DAMN .. another competition!!\u201d tweeted Bollywood superstar Amitabh Bachchan on Monday. Big B and RGV have worked together in several movies including Sarkar franchise and Department. Amitabh Bachchan's Tweet: T 3136 - FINALLY .. !! Ram Gopal Varma .. the 'SARKAR' finds his true vocation .. ACTING !! All the best Sircaarrrrr .. ???????????? DAMN .. another competition !!???????? pic.twitter.com\/5sFDCB8NnD \u2014 Amitabh Bachchan (@SrBachchan) April 8, 2019 READ:\u00a0Kalank fourth song: Madhuri Dixit starrer 'Tabah Ho Gaye' to release tomorrow Ram Gopal Varma Tweet: COBRA is a biopic of a rowdy sheeter turned naxalite turned Police covert agent turned gangster ..While the likes of Dawood Ibrahims and Chota Rajans ruled the criminal world on brand names, the Cobra ruled in anonymity ..No one knew of his existence till he died pic.twitter.com\/zxTeLrMMdJ \u2014 Ram Gopal Varma (@RGVzoomin) April 8, 2019 RGV is playing an intelligence officer called R in Cobra. In addition to acting, RGV is also co-directing the forthcoming film with Agasthya Manju. His recent directorial outing was Lakshmi\u2019s NTR, which was also co-directed by Agasthya. It was based on the political and personal struggles of movie-god NT Rama Rao after his controversial second marriage. The film tanked at the box office.