Hello ,

As your query is concerned that you want to take admission in Delhi University and your school is not issuing new provisional certificate. Since during admission procedure for Delhi University each and every document that is required for admission is compulsory and you have to submit that then only you can take admission, so in my opinion it will be better to talk to the higher authorities of your school like your Principal or maybe the Examination Department Head then only you will get the solution and you have to bring your parents and then you have to ask them and if there is something else issue then they need to resolve it because you need to get the document as soon as possible for getting the admission.

Further, there is a quite possibility that due to a genuine reason of your school they might not be providing you provisinal certificate then it's better that you talk to the Delhi University admission cell and if they understand your problem or the issue related to that they will provide you sort of help that there they spare some more time to you that you can submit the document later.

I hope your query is solved.