If you have got the overall score in your PTE exam, then you can apply for Diploma course . For further info, please consult the consultant. That can give you exact guide which will be helpful for you.
Hello Simran, you need to check with your college about what is their minimum limit for eligibility. Each college has different criteria. Moreover, only PTE is not enough for applying to the colleges in australia. You need letter of recommendations, statement of purpose(SOP) and other things in addition with your PTE test.