Hiii

The application forms and admission notice for delhi university will be published in the month of may most probably. 
For IP university, it is most likely that the applications will start in the month of february.
You can refer to following links for more details
https://engineering.careers360.com/articles/ipu-cet
https://university.careers360.com/articles/ip-university-application-form
https://university.careers360.com/articles/du-admission

Thanks!!