After the Second World War and during the following the Greek Civil War in 1946-1949 she was accused for illegal left wing activities and was arrested and on April 13, 1949 put in the Averoff prison (Φυλακές Αβέρωφ, demolished in 1971) in Athens. The Averoff prison was a women's prison where women were allowed to bring their children if they were below two years old. Since Mando was a medical doctor she was assigned to take care of the women's and also the children's health at the prison. She was released after 21 months without any charges.