HI,

PCB Doesnt have maths and to for DU JAT maths is complusory

either if you had PCM OR PCMB you could have 

As per the DU JAT 2019 eligibility criteria norms, Aspirants belonging to the General Category should have an aggregate of minimum 60 percent in four papers including English, Mathematics and other two subjects from the list of elective subjects as approved by the University of Delhi.

Hope its clear