She is the State Minister for Kampala Capital City Authority in the Ugandan Cabinet.
She attended Saint Edwards College, in Bukuumi, in modern-day Kakumiro District, for her O-Level studies.
She transferred to Saint Kizito High School Bethany, in Ngugulo, in modern-day Mityana District, for her A-Level education.
[2] In 1998, Benna Namugwanya was hired by Mubende District Local Government, as an Inspector of Schools, serving in that capacity for six years.
[2] In the cabinet list, released on 6 June 2016, Namugwanya was named the Minister of State for Kampala Capital City authority Affairs, deputizing Beti Olive Namisango Kamya-Turomwe, the full cabinet minister.