 He is the author of the article known as "The information poisoned", which was a source of controversy between the Tunisian Government and the Provisional Government of the Algerian Republic.It represented the Provisional Government along with Mohammed-Seddik Benyahia in Melun talks at June 1960 and participated in the first negotiations in Evian
During the internal crisis occurred after independence, Boumendjel rallied with Ferhat Abbas to Ben Bella groupe.He was appointed Minister of Public Works in September 1962 to 1963.