Kathrada's involvement in the anti-apartheid activities of the African National Congress (ANC) led him to his long-term imprisonment following the Rivonia Trial, in which he was held at Robben Island and Pollsmoor Prison.
Keterlibatan Kathrada dalam kegiatan anti-apartheid dalam Kongres Nasional Afrika (ANC) membawanya ke penjara dengan jangka panjang setelah Pengadilan Rivonia, di mana dia ditahan di Pulau Robben dan Penjara Pollsmoor.