The former Elite United offensive midfielder scored his side opening goal in the 87th minute of the game before Ousman Diouf scored the winning goal for Casa Sports.
The victory has helped the Cassamance-based team progress to the semifinal of the Senegalese Coupes Nationales.
Jarju, who moved to Senegalese side Casa Sports last season has been instrument for the Casamance-based side during his maiden season.