 In 2010, Sen was convicted of sedition and several other offences under Indian Penal Code by Raipur Sessions Court in Chhattisgarh after finding him and two others, guilty of sedition for helping the Maoists in their fight against the state.They were sentenced to life imprisonment.After his conviction, he was later released by the Supreme Court of India though the apex court said it was giving no reason for granting bail and left it to the satisfaction of the trial court concerned to impose the conditions for his release on bail.