When his mother's bookshop closed, the books were stocked at home, something that introduced Mulumba to reading early in his life and sparked a desire for storytelling.

[19] He studied at Bishop Ddungu Boarding Primary School, Blessed Sacrament Kimaanya Primary School, St. Henry's College Kitovu, and then Makerere University, where he obtained a Bachelor of Science degree in Land Economics.

[20] Mulumba's first collection of poems, Poetry in Motion, was called "an enterprising first" by the Africa Book Club.

[21] The Daily Monitor called it "an anthology that chronicles the first steps of a poet, and captures the beliefs, experiences and some ideologies in society".

[22] His story "Chasing my tail" was runner-up for the October 2013 Africa Book Club short reads competition.