The hosts were the better team in the opening minutes and did not look like conceding before Hume stretched his purple patch in front of goal from a free kick.
After winning a foul, the visitors took a quick free kick which set Hume free on goal. The Canadian made no mistake to give his team the lead, converting Courage Pekuson's quick layoff with ease.
Just after the halftime break, Mumbai had the best chance to take the lead but Balwant Singh missed a sitter.
Mumbai pressed hard for an equaliser but Kerala held on and bagged all three points.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)