HI,

For DU JAT 2019 STUDENTS  belonging to SC/ST/CW/PwD category requires minimum 55 per cent and general catergory requires min of 60 precent

so as your percentage is less then the required eligibility certeria you cannot apply for it

for more information check the link below

https://bschool.careers360.com/articles/du-jat-eligibility-criteria