Babrak Karmal befriended fellow inmate Mir Akbar Khyber, who introduced Karmal to Marxism. Karmal changed his name from Sultan Hussein to Babrak Karmal, which means "Comrade of the Workers'" in Pashtun, to disassociate himself from his bourgeois background. When he was released from prison, he continued his activities in the student union, and began to promote Marxism. Karmal spent the rest of the 1950s and the early 1960s becoming involved with Marxist organizations, of which there were at least four in Afghanistan at the time; two of the four were established by Karmal. When the 1964 Afghan Provisional Constitution, which legalised the
Babrak Karmal Chairmanship of the Presidium of the Revolutionary Council, some time before Karmal received an official appointment. Karmal returned to Kabul on 28 December. He travelled alongside a Soviet military column. For the next few days Karmal lived in a villa on the outskirts of Kabul under the protection of the KGB. On 1 January 1980 Leonid Brezhnev, the General Secretary of the Central Committee of the Communist Party of the Soviet Union, and Alexei Kosygin, the Soviet Chairman of the Council of Ministers, congratulated Karmal on his "election" as leader. When he came to power, Karmal promised an end to