[2] Abbo Nassour would retain a strong grudge against the Haggars for many years to come, seeing them as accomplices of the French colonial authorities.
[6] After Ahmed Kotoko had relinquished his seat after the June 1958 elections, Nassour was put forth as the UST candidate to represent Chad in the General Council.
[5] He was named Minister of Economic Affairs and Financies in the provisional government of Gontchomé Sahoulba formed on February 11, 1959.
[5][8][13] In the night of March 21/22, 1963 Nassour was one of a number of politicians (mainly Muslims) jailed by the new one-party state under Tombalbaye.
[14][15] A special tribunal, chaired by Kodébri Nagué, was held between June 7, 1963, and July 24, 1963, for Abbo Nassour and other accused in 'the March 22 plot'.
[2][16][17][18] After years in prison, Nassour was given amnesty in June 1969 as part of the reconciliation process initiated by Tombalbaye.
[20][21][22] Nassour was named President of the National Assembly of Chad on December 30, 1969, and remained in this function until the fall of Tombalbaye on April 13, 1975.
[25] In Tripoli he met with the exiled rebel leader, derde Oueddei Kichidemi, although the Chadian government initially denied such reports.