Moosa was also a shop steward for the Cape Town Food and Canning Workers Union.

She was brought up in a liberated Islamic environment and she attended Trafalgar High School in District Six.

[2] Annoyed by the policies of the Apartheid government she and her twin sister Fatima campaigned for change.

Rahima was a shop steward and in 1951 she married her comrade activist Dr. Hassen “Ike” Mohamed Moosa who had already stood trial for treason.

Rahima, Sophia De Bruyn, Helen Joseph and Lillian Ngoyi led 20,000 women's march on 9 August 1956 to demonstrate against the further strengthening of Pass Laws.