By his second year in secondary school, Dr. Salim, along with his fellow students, started an student organization called All Zanzibar Student’s Union. He became concerned and interested in student welfare and youth activism. It was during this period when Dr. Salim first met Mwalimu Julius Nyerere when he visited Zanzibar as part of the Pan African Freedom Movement of East and Central Africa delegation. Though a short engagement, for Dr. Salim this was the beginning of his political commitment to the Union between Zanzibar and Tanganyika, but also his admiration and loyalty to Mwalimu.