After being behind bars for nearly four months, civil rights activist Binayak Sen was released on Monday evening from the Chattisgarh's central prison where he is serving a life sentence. The Supreme Court had granted him bail, three days ago.The 61-year-old old medical doctor, who was sentenced to life by a local court on charges of sedition and links with Maoists, was reunited with his family. Hours before he walked free out of his cell in the Raipur prison, Additional District and Sessions Judge BP Verma directed Sen to surrender his passport as a bail condition in line with the Supreme Court order and that he be released on a personal bond and surety of 50,000 rupees each.The session judge also ordered Sen not to leave the country and appear in the High Court during hearings as and when required. Sen has been lodged in the prison since December 24 when he was convicted and sentenced to life. Sen asserted that he is not a traitor and said the Supreme Court observation in his case will have deep political implication.He also welcomed Law Minister Veerappa Moily's stand that the country's sedition laws needed a relook and gave a clarion call for a campaign by the civil society against these legislations. He said, he knew in his heart that he have never betrayed our country. Flanked by his wife, mother and two daughters at their media interaction Sen said it is a big decision by the Supreme Court.