Marouane Lemzaouri scored an own goal in the 15th minute to hand Fadlu's side a lead.
The away side doubled the lead in the 69th minute when Ismail Khafi struck.
This is a big win for Fadlu and his team since the three points collected have propelled them to the second position in the standings of the Botola Pro league. However, they might find themselves top if Maghreb Fez lose their respective game tonight.
The win has also pushed Raja above Thembinkosi Lorch's Wydad Casablanca, who are sixth. Wydad will be in action later tonight as they are set to face Renaissance Zemamra.