Ingwe, under caretaker coach Dennis Kitambi, handed the 'Slum Boys' a first defeat of the season at Kenyatta Stadium in Machakos on Saturday.
Meanwhile, the win was Kitambi's second since he took over the team two weeks ago on an interim basis.
Kitambi, who is in charge following the suspension of Robert Matano, picked his maiden win - 2-0 - against Sony Sugar last weekend.
“It is difficult to take it (lose) but sometimes you have to understand. The opposition was aggressive and concentration was the key. That’s an area we’ll need to address going forward.
“As a coach, you always work to win and we were close to winning but I believe the injury was the turning point for us in this game. I still don’t have the full detail. We’ll have to wait for the Doctor’s report,’ Kimanzi said in a post match interview.
The win saw AFC Leopards move to fourth place with 10 points, just one below Mathare United, who are second on the log.