Ex-deputy inspector general of police (DIG) (Prisons) D. Roopa has claimed that a corridor of about 120 ft to 150 ft length is barricaded on both ends of the Parappana Agrahara central prison, heavily, and is used as private space by jailed All India Anna Dravida Munnetra Kazhagam (AIADMK) general secretary V.K. Sasikala.