AmaZulu got back to winning ways after beating Baroka 2-0 at Peter Mokaba Stadium on Saturday.
Usuthu scored through Bonginkosi Ntuli in the 21st minute to go into half time leading 1-0.
Substitute Sphelele Magubane secured the maximum points for the visitors with two minutes remaining.
AmaZulu are now at position eight with 15 points from 13 matches.
Bakgaga on the other hand dropped to 10th with the same number of points and the same number of games but with an inferior goal difference.
By Ofhani Munyai