See the exams will be conducted or won't be conducted is entirely dependent on the situation of covid 19. But in general, the exam will conducted as this year also the exam is going to conducted in the month of september. So you should keep your preparation up for the examination next year.

The exam is usually conducted in Online CBT mode and the timing of each paper varies from courses to courses. To know about the general details of UPCET you may visit the link below:

https://www.careers360.com/exams/upcet

I hope this answer helps. All the very best for your future endeavors!