With Mlandege leading the group with two points, it meant Sunday's winner would automatically qualify for the semi-final.
The Tanzanian heavyweights thought they scored in the second minute when Iddi Selemani tapped the ball on target, but the officials were not moved as they felt the ball did not cross the line while the replays suggested otherwise.
From that point onwards, both teams played cautiously to avoid conceding since it would have lowered their chances of making it to the next phase of the competition.
Seemingly, the match was headed for a goalless draw but Azam FC managed to get a penalty in the 60th minute.