Chapungu appeared to have the game under control in the first minutes when Francis Msalaza-kanda and Phillip Marufu kept Bosso captain, Gilbert Banda and Dick Herbert busy.
Goalkeeper Washington Arubi denied the reliable Chapungu duo an early lead in the 6th minute.
Nqobile Mpala usurped Chapungu strikers in the 12th minute but with their chance of an equalizer was off-side in the second half. They walked away with three points, five minutes before time, with a Jacob Muzokomba blast outside the box.