1961 – Yousuf returned to Mauritius after the completion of his academic studies and started practising at the Mauritian Bar as Barrister.
1963, – He left Mauritius for the Faculté de Droit – Paris to study French Law.
1965 – Returning from his studies, he resumed his practice at the Bar.
1967 to 1976 – Yousuf served as an elected Member of Parliament.
1976 to 1979 – He served as Minister of Labour and Industrial Relations.
1979 – Yousuf had the privilege of being appointed as Ambassador to Egypt with accreditation to Saudi Arabia and Kuwait.
1981 to 1987 – He was elected to Parliament again and served as Deputy Speaker.
1981 – Yousuf resumed his practice at the Bar
July 1995 – He was elevated to the position of Senior Counsel (S.C.)
2003 – Yousuf was conferred the title Grand Officer of the Order of the Star and Key of the Indian Ocean (G.O.S.K) by the President of the Republic.
Currently he is still practising as Barrister.